To see the other types of publications on this topic, follow the link: Components of the information system.
Dissertations / Theses on the topic 'Components of the information system'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Components of the information system.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Moore, Margery Anne. "An analysis of an environmental management information system, characteristics and components." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58542.pdf.
Full text
2
Wang, Kerwin. "Micro-optical components for a MEMS integrated display /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/6047.
Full text
3
Söllner, Matthias [Verfasser]. "Deriving Trust Supporting Components for Ubiquitous Information Systems / Matthias Söllner." Kassel : Kassel University Press, 2014. http://d-nb.info/1074484770/34.
Full text
4
Andersson, Richard. "Evaluation of the Security of Components in Distributed Information Systems." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2091.
Full textAbstract:
This thesis suggests a security evaluation framework for distributed information systems, responsible for generating a system modelling technique and an evaluation method. The framework is flexible and divides the problem space into smaller, more accomplishable subtasks with the means to focus on specific problems, aspects or system scopes. The information system is modelled by dividing it into increasingly smaller parts, evaluate the separate parts and then build up the system “bottom up” by combining the components. Evaluated components are stored as reusable instances in a component library. The evaluation method is focusing on technological components and is based on the Security Functional Requirements (SFR) of the Common Criteria. The method consists of the following steps: (1) define several security values with different aspects, to get variable evaluations (2) change and establish the set of SFR to fit the thesis, (3) interpret evaluated security functions, and possibly translate them to CIA or PDR, (4) map characteristics from system components to SFR and (5) combine evaluated components into an evaluated subsystem. An ontology is used to, in a versatile and dynamic way, structure the taxonomy and relations of the system components, the security functions, the security values and the risk handling. It is also a step towards defining a common terminology for IT security.
5
Pukhanov, Alexander. "WiFi Extension for Drought Early-Warning Detection System Components." Thesis, Linköpings universitet, Elektroniska Kretsar och System, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-123436.
Full textAbstract:
Excessive droughts on the African continent have caused the Swedish Meteorological and Hydrological Institute to launch a program of gathering data in hopes of producing models for rainfalls and droughts. A sensor capable of gathering such data has already been chosen, however there remains the problem of conveniently retrieving data from each of the sensors spread over a large area of land. To accomplish this goal, a small, cheap and efficient wireless capable module would need to be used. A possible candidate is the new WiFi-module from Espress if designated ESP8266. It is an extremely cheap and versatile wireless SoC that is able to perform the task of a wireless communications adapter for the sensor unit. The point of this thesis is to investigate the suitability of IEEE 802.11 for the task, and produce a piece of firmware for the ESP8266. The firmware shall enable it to be attached to a sensor and operate as a wireless mesh node in a self-organizing WLAN sensor network, enabling data retrieval via WiFi multi-hop deliveries.
6
Wint, Noel Jr. "An Investigation of Socio-technical Components of Knowledge Management System (KMS) Usage." NSUWorks, 2016. http://nsuworks.nova.edu/gscis_etd/961.
Full textAbstract:
Existing literature indicates that although both academics and practitioners recognize knowledge management (KM) as a source of competitive advantage, users are not always willing to use a knowledge management system (KMS). Because of the social nature of knowledge transfer, a KMS can be considered a socio-technical system. Many explanations have been presented for this failure to utilize the KMS. These explanations include a number of the socio-technical factors relating to people, processes, and technologies. While these factors may have significant explanatory power when examined independently, existing studies have not sufficiently addressed the interactions among all three socio-technical factors or their impacts on KMS usage.
The goal of this study was to develop a comprehensive understanding of socio-technical factors that impact KMS usage within decision support systems (DSS). A comprehensive framework was presented that will be helpful in developing and improving KMS initiatives and thus improving KM across the organization. This study identified factors of people (self-efficacy, social ties, and ease of use), processes (leadership, culture/climate, and governance), and technologies (system & information quality, and technology fit) and their influence on KMS system usage. Analysis for this problem required a causal, non-contrived field study employing structural equation modeling.
Founded on socio-technical systems theory, nine hypotheses were proposed. Data was collected using a 36 item survey distributed to KMS users from a variety of industries in the United States. Confirmatory factor analysis and an eight-stage structural equation modeling procedure were used to analyze 97 usable responses. The results confirmed that technology-oriented factors predicted knowledge seeking and contributing in DSS. Furthermore, significant positive relationships were confirmed between certain sociotechnical factors including: (1) people and process, (2) people and technology, (3) processes and technology, (4) processes and people, (5) technology and people, and (6) technology and processes. These findings extend the relevance and statistical power of existing studies on KMS usage.
This study indicated that the most important concerns for increasing KMS usage were system quality, information quality, and technology fit. Results also confirmed that in the context of this study, people-oriented factors (self-efficacy, social ties, and ease of use/usefulness) and organizational process factors (leadership, organizational culture/climate, and governance) were not critical factors directly responsible for increasing KMS usage. However, the relationships among socio-technical factors all had positive significant relationships. Therefore, investments in people and process-oriented factors will create a more favorable perspective on technology-oriented factors, which in turn can increase KMS usage.
On a practical front, this study provided indicators to managers regarding a number of desirable and undesirable conditions that should be taken into consideration when developing or implementing knowledge management initiatives and the systems to support them. This study offered an original contribution to the existing bodies of knowledge on socio-technical factors and KMS usage behavior. The constructs presented in this study highlighted the significance of social and technical relationships in understanding knowledge seeking and contribution in a decision-driven organization.
7
Andersson, Karl. "Mapping out dependencies in network components in critical infrastructure." Thesis, Linköpings universitet, Programvara och system, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-143981.
Full textAbstract:
Companies that operate with critical infrastructure face a growing threat from cyber-attacks while at the same time the development in the business is rapidly moving towards a higher level of digitalization. A common type of system in critical infrastructure is supervisory control and data acquisition systems, these systems have properties that can affect their security and will therefore serve as the basis for this thesis work. To stay protected despite systems changes, companies need to make risk assessments in order to analyze how changes will affect the overall system. One thing that is important to focus on is dependencies within the system, this means that not only interaction among computers and networks are concerned but instead a more holistic view of the system need to be considered. This thesis aims to aid the process of a future risk assessment by providing a methodology to be used as a preparatory step before a risk assessment by describing the current situation of the system. This is done by evaluating two system modeling approaches, and also by proposing a number of perspectives that each provides different kind of information about the system’s dependencies. These perspectives are then evaluated by creating system models and dependency graphs, and discussing the outcomes with experts in a utility company to find out their applicability. According to the experts, the proposed perspectives have promising properties that can be useful in future risk assessments as well as in other scenarios. Moreover, the evaluated modeling approaches got positive comments during evaluation and are considered to serve their purpose.
8
Krákora, Jan. "METODIKA ZAVÁDĚNÍ KOMPONENT INFORMAČNÍCH SYSTÉMŮ NA VEŘEJNÝCH VYSOKÝCH ŠKOLÁCH V ČR." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-165203.
Full textAbstract:
Diploma thesis analyzes procedure of implementing new component of information system on universities in Czech Republic. Data were collected with the aid of question-form and complemented by interview on chosen universities. Analyze of implementation is divided into several areas: IS architecture, component cooperation, opening analysis, contractor selection, contract, methodology used, project management, time table, global analysis, verification of data purity, testing, training, documentation and acceptance. General recommendations of implementation new component into information system are made from gained information in chapter 6 and summary of thesis.
9
Price, Susan Loucette. "Semantic Components: A Model for Enhancing Retrieval of Domain- Specific Information." PDXScholar, 2008. https://pdxscholar.library.pdx.edu/open_access_etds/2673.
Full textAbstract:
Despite the success of general Internet search engines, information retrieval remains an incompletely solved problem. Our research focuses on supporting domain experts when they search domain-specific libraries to satisfy targeted information needs. The semantic components model introduces a schema specific to a particular document collection. A semantic component schema consists of a two-level hierarchy, document classes and semantic components. A document class represents a document grouping, such as topic type or document purpose. A semantic component is a characteristic type of information that occurs in a particular document class and represents an important aspect of the document’s main topic. Semantic component indexing identifies the location and extent of semantic component instances within a document and can supplement traditional full text and keyword indexing techniques. Semantic component searching allows a user to refine a topical search by indicating a preference for documents containing specific semantic components or by indicating terms that should appear in specific semantic components.
We investigate four aspects of semantic components in this research. First, we describe lessons learned from using two methods for developing schemas in two domains. Second, we demonstrate use of semantic components to express domainspecific concepts and relationships by mapping a published taxonomy of questions asked by family practice physicians to the semantic component schemas for two document collections about medical care. Third, we report the results of a user study, showing that manual semantic component indexing is comparable to manual keyword indexing with respect to time and perceived difficulty and suggesting that semantic component indexing may be more accurate and consistent than manual keyword indexing. Fourth, we report the results of an interactive searching study, demonstrating the ability of semantic components to enhance search results compared to a baseline system without semantic components.
In addition, we contribute a formal description of the semantic components model, a prototype implementation of semantic component indexing software, and a prototype implementation adding semantic components to an existing commercial search engine. Finally, we analyze metrics for evaluating instances of semantic component indexing and keyword indexing and illustrate use of a session-based metric for evaluating multiple-query search sessions.
10
Magnusson, Alexander, and David Pantzar. "Integrating 5G Components into a TSN Discrete Event Simulation Framework." Thesis, Mälardalens högskola, Inbyggda system, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-54552.
Full textAbstract:
TSN has for many years been the staple of reliable communication over traditional switched Ethernet and, has been used to advance the industrial automation sector. However, TSN is not mobile, which is needed to fully enable Industry 4.0. The development of 5G and its promised URLLC combined with TSN would give both a mobile and reliable heterogeneous network. The 3GPP has suggested different designs for a 5G and TSN integration. This thesis investigates the different proposed integration designs. Besides the integration design, one of the most essential steps towards validity of the integration is to evaluate the TSN-5G networks based on simulation. Currently, this simulation environment is missing. The investigation in this thesis shows that the most exhaustive work had been done on the Logical TSN Bridge design for simulators, such as the ones based on OMNeT++. Capabilities of the simulator itself are also investigated, where aspects such as the lack of a 5G medium and clock synchronization are presented. In this thesis, we implement the 5G-TSN component that results in a translator which sets different 5G channel parameters depending on the Ethernet packet's priority and its corresponding value. To verify the functionality of the translator that is developed within the simulator, it is tested in a use case inspired by the vehicle industry, containing both TSN and 5G devices. Results from the use case indicate that the translation is performed correctly.
11
Sanderson, Conrad, and conradsand@ieee org. "Automatic Person Verification Using Speech and Face Information." Griffith University. School of Microelectronic Engineering, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030422.105519.
Full textAbstract:
Identity verification systems are an important part of our every day life. A typical example is the Automatic Teller Machine (ATM) which employs a simple identity verification scheme: the user is asked to enter their secret password after inserting their ATM card; if the password matches the one prescribed to the card, the user is allowed access to their bank account. This scheme suffers from a major drawback: only the validity of the combination of a certain possession (the ATM card) and certain knowledge (the password) is verified. The ATM card can be lost or stolen, and the password can be compromised. Thus new verification methods have emerged, where the password has either been replaced by, or used in addition to, biometrics such as the persons speech, face image or fingerprints. Apart from the ATM example described above, biometrics can be applied to other areas, such as telephone & internet based banking, airline reservations & check-in, as well as forensic work and law enforcement applications. Biometric systems based on face images and/or speech signals have been shown to be quite effective. However, their performance easily degrades in the presence of a mismatch between training and testing conditions. For speech based systems this is usually in the form of channel distortion and/or ambient noise; for face based systems it can be in the form of a change in the illumination direction. A system which uses more than one biometric at the same time is known as a multi-modal verification system; it is often comprised of several modality experts and a decision stage. Since a multi-modal system uses complimentary discriminative information, lower error rates can be achieved; moreover, such a system can also be more robust, since the contribution of the modality affected by environmental conditions can be decreased. This thesis makes several contributions aimed at increasing the robustness of single- and multi-modal verification systems. Some of the major contributions are listed below. The robustness of a speech based system to ambient noise is increased by using Maximum Auto-Correlation Value (MACV) features, which utilize information from the source part of the speech signal. A new facial feature extraction technique is proposed (termed DCT-mod2), which utilizes polynomial coefficients derived from 2D Discrete Cosine Transform (DCT) coefficients of spatially neighbouring blocks. The DCT-mod2 features are shown to be robust to an illumination direction change as well as being over 80 times quicker to compute than 2D Gabor wavelet derived features. The fragility of Principal Component Analysis (PCA) derived features to an illumination direction change is solved by introducing a pre-processing step utilizing the DCT-mod2 feature extraction. We show that the enhanced PCA technique retains all the positive aspects of traditional PCA (that is, robustness to compression artefacts and white Gaussian noise) while also being robust to the illumination direction change. Several new methods, for use in fusion of speech and face information under noisy conditions, are proposed; these include a weight adjustment procedure, which explicitly measures the quality of the speech signal, and a decision stage comprised of a structurally noise resistant piece-wise linear classifier, which attempts to minimize the effects of noisy conditions via structural constraints on the decision boundary.
12
Ngo, Duc Khanh. "Relief Planning Management Systems - Investigation of the Geospatial Components." Thesis, KTH, Geodesi och geoinformatik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118373.
Full text
13
Djadkin, Alexander, and Emrah Tortumlu. "Upgrade of the Analytical System for Studies of Plasma-Facing Components from a Tokamak." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-293885.
Full textAbstract:
Fusion energy is a potential candidate for sustain-able steady-state energy supply. However, a fully functional fusion reactor is not yet available and several remaining challenges need to be addressed before fusion becomes a reliable source. One of the remaining challenges with fusion is the plasma-induced modification of the inner wall of the tokamak, i.e. the structures surrounding hot plasma. Due to the rarity of tritium, an important element in future fusion fuel, the plasma facing component (PFC) should have as low fuel retention as possible. In this thesis, methods for controlling ion accumulation in a material sample have been developed. Using the new system, a molybdenum (42Mo) target has been implanted with deuterium (2H) and the retention has been measured with ion beam analysis. The experiment was carried out using particle accelerators at the Ångström Laboratory at Uppsala University. Following tasks were completed before the experiment took place: (a) automation of the target position regulator, (b) development of control software, and (c) calibration and testing of the system. The deuterium dose was estimated at the level of1.9·1017 atoms/cm2.The deuterium concentration in molybdenum was found to be around 28·1015 atoms/cm2. This corresponds to a retention rate of around (15±3)%.Fusion är en potentiell kandidat för hållbar kontinuerlig energi. Tyvärr är en fullt fungerande fusionsreaktor inte tillgänglig ännu och flera utmaningar kvarstår att lösa innan det blir en tillförlitlig källa. En av dessa utmaningar är plasma- inducerad modifikation av den inre väggen, dvs. strukturen närmast det heta plasmat i en tokamak. Tritium är en viktig komponent i ett framtida fusionsbränsle och väldigt sällsynt. Därför måste mängden bränsle som fastnar i väggen minimeras. I detta arbete har metoder för jonbestrålning av ett materialprov utvecklats. Med hjälp av det nya systemet har molybden (42Mo) bestrålats med deuterium (2H) och bibehållandet av deuterium har mätts med jonstråleanalys. Experimentet utfördes med hjälp av partikelacceleratorer i Ångströmlaboratoriet vid Uppsala Universitet. Följande uppgifter utfördes innan experimentet ägde rum: (a) automatisering av provmanipulatorn, (b) utveckling av programvara för styrning och (c) kalibrering och test av systemet. I ett avslutande test uppskattades den implanterade dosen till 1, 9 · 1017 atomer/cm2. Proverna var därefter analyserade och med kärnreaktionsanalys hittades ungefär 28 · 1015 atomer/cm2. Detta motsvarar ett bibehållnade på ungefär (12 ± 3)%.
Kandidatexjobb i elektroteknik 2020, KTH, Stockholm
14
Hjertström, Andreas. "Information centric development of component-based embedded real-time systems /." Västerås : School of Innovation, Design and Engineering, Mälardalen University, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-7582.
Full text
15
Fernandez, Horcajuelo Alba. "Development of EMT components and reference grid in OpenModelica." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-293978.
Full textAbstract:
Power systems simulation tools enable to study and evaluate the performance of electrical power systems in different scenarios. This allows the development and implementation of new solutions to the challenges electrical grids face nowadays. In this sense, electromagnetic transient (EMT) simulation provides detailed information on the behaviour of the different components involved in the system. Moreover, among the wide range of existing tools, those based in Modelica language present certain advantages for power system simulation, such as equation- based modeling and the possibility of working in open- source environments. This project presents the development of components and reference grid in EMT formalism in the open- source environment OpenModelica, based on Modelica language. With the purpose of power system simulation, electrical components have been modeled in OpenModelica and gathered in a library for EMT simulation The performance of the different components has been validated by comparing the results of the EMT simulation of a 3buses reference grid in different case studies in OpenModelica and other EMT- based software. Furthermore, the comparison has been also established with phasor simulation in OpenModelica, enabling the evaluation of the differences between phasor and EMT simulation. The results show the main advantages and drawbacks of working with OpenModelica regarding other simulation tools and the lack of information provided by the phasor simulation, particularly in the case of a fault event. Additionally, certain difficulties encountered when working with OpenModelica have also been identified.Simulering av kraftsystem gör det möjligt att studera och utvärdera prestandan i olika scenarion. Genom detta kan utveckling och implementering av nya lösningar på de utmaningar som elnäten står inför framöver ske. Elektromagnetisk transient (EMT)simulering ger detaljerad information om beteendet hos de olika komponenterna i systemet. Bland de många befintliga verktygen innehåller de som är baserade på Modelica- språket dessutom vissa fördelar för kraftsystemsimulering, såsom ekvationsbaserad modellering och möjligheten att arbeta i miljöer med öppen källkod. Den här uppsatsen presenterar en utveckling av komponenter och testelnät i EMT- formalism i öppen källkodsmiljö OpenModelica, baserat på programmeringsspråket Modelica. Elektriska komponenter har modellerats i OpenModelica och samlats i ett bibliotek för EMT- simulering. Målet är en detaljerad simulering av elkraftsystem. Komponenternas prestanda har validerats genom att jämföra resultatet av EMT- simuleringen av ett 3bussreferensnät i olika fallstudier i OpenModelica och annan EMT- baserad programvara. Sedan har jämförelsen även utförts med simuleringar i fasorformalism i OpenModelica. Den här jämförelsen har också möjliggjort utvärderingen av skillnaderna mellan fasor och EMT- simulering. Resultaten visar de största fördelarna och nackdelarna med att arbeta med OpenModelica njämfört med andra simuleringsverktyg. De visar också bristen på information om fasorsimuleringen, särskilt i fallet med ett elektriskt fel. Dessutom har vissa svårigheter identifierats med att arbeta med OpenModelica.
16
Ahlborg, Anton. "How mail components on the server side detects and process undesired emails : a systematic literature review." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-20120.
Full textAbstract:
As the use of emails increases constantly every year, so do the reports of various victims in society, on companies and individuals who have been affected by these undesirable emails in the form of spam, spoofing and phishing in their inbox. The effect of undesirable emails are many, but in summary, they cost the society and organization immense amount of money. This study will aim to understand why these emails still make its way into a user’s inbox by identifying current existing solutions that are being used by email servers to evaluate incoming undesirable emails. The analysis of the study shows that there are shortcomings in the solutions that are being used today, which lead to undesirable emails reaching a user’s inbox, and it is likely to continue in the near foreseeable future, unless research and or actions are applied to some of the brought-up issues in this study, namely problems with adoption and usage rate of authentication protocols, technical issues within authentication protocols and emails being wrongly classified by today's filtering techniques.
17
Karlsson, Karl. "Validation of Bus Specific Powertrain Components in STARS." Thesis, Linköping University, Department of Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10525.
Full textAbstract:
The possibilities to simulate fuel consumption and optimize a vehicle's powertrain to fit to the customer's needs are great strengths in the competitive bus industry where fuel consumption is one of the main sales arguments. In this master's thesis, bus specific powertrain component models, used to simulate and predict fuel consumption, are validated using measured data collected from buses.
Additionally, a sensitivity analysis is made where it is investigated how errors in the powertrain parameters affect fuel consumption. After model improvements it is concluded that the library components can be used to predict fuel consumption well.
During the work, possible model uncertainties which affect fuel consumption are identified. Hence, this study may serve as foundation for further investigation of these uncertainties.
18
Choudhry, Aurang-Zeb. "Application Outsourcing Governance Model : Critical components of a Successful Application Outsourcing Governance Framework." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-33875.
Full textAbstract:
Emerging technologies have changed the environment of global competition; many IT-firms are adapting new trends of offshore software development to attain latest and low costs services. This research report is aimed to fill the literature void on application outsourcing governance and emphasize on the components critical for a successful application outsourcing governance model. The research is conducted on a service-buyer IT-firm which forwards software development assignments to its vendors locally as well as globally. Research employs qualitative method where social constructivist philosophical worldview is used to gain practical understanding of participants’ viewpoints on the research topic; research uses inductive approach which is intended at theory building. Three types of interview methods are used for data collection; analytical process of Grounded Theory is used to analyze the data systemically. GT coding technique is used to code collected data into different concepts by constant comparison and by asking questions; similar concepts are gathered under different categories. One core category and seven key categories are emerged from the data; these categories represent the key components of application outsourcing governance model. Finally, these components integrate in order to form application outsourcing governance framework for successful deliveries of application outsourcing projects.
19
Brooks, H. M. "An intelligent interface for document retrieval systems : Developing the problem description and retrieval strategy components." Thesis, City University London, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373324.
Full text
20
Dan, Yufang. "SECURITY AND SELF-HEALABILITY ENFORCEMENT OF DYNAMIC COMPONENTS IN A SERVICE-ORIENTED SYSTEM." Phd thesis, INSA de Lyon, 2014. http://tel.archives-ouvertes.fr/tel-00994833.
Full textAbstract:
Les architectures dynamiques orientées services ( D-SOA) se concentrent sur les interactions client-serveur à couplage faible, où les deux peuvent apparaître et disparaître à l'exécution. Notre objectif est de concevoir des systèmes de surveillance pour ces architectures. Comme les systèmes de surveillance classiques sont statiquement injectés dans les services surveillés, ils ne peuvent pas gérer correctement le cycle de vie des services d'exécution. En outre, quand un service est remplacé par un autre service, d'autres services peuvent toujours utiliser l'ancienne référence. Cette référence vers un service absent, lorsqu'elle est gardée en mémoire, peut induire des comportements non désirés. Cette thèse contribue à la conception d'un système de surveillance de l'utilisation des services, qui soit résistant à la dynamique de la plateforme et qui soit en mesure de faire face à l'utilisation des références obsolètes. Ce but est atteint en trois étapes. Tout d'abord, en considérant le caractère dynamique des systèmes SOA dans un environnement ouvert, nous concevons une approche de monitoring résistant au la dynamique de la plateforme. Nous identifions deux propriétés clés du système de surveillance à couplage faible: résilience à la dynamicité, c'est-à-dire qu'un moniteur d'interface et son état sont maintenus en mémoire et transférés à un nouveau service lors de la disparition d'un service utilisé, et exhaustivité, c'est-à-dire qu'un service surveillé ne peut pas contourner les observations du moniteur. Ensuite, pour éviter l'usage de références vers des services qui ne sont plus actifs, nous proposons un service de sécurité côté client (SSU Layer), qui permet de traiter ce problème de manière transparente. Si un service utilisé disparaît, la couche SSU peut soit substituer le service de manière transparente, soit lever une exception pour avertir explicitement le client. Cette couche SSU est basée sur une approche transactionnelle qui vise à préserver la cohérence des services actifs. Enfin, nous proposons d'intégrer les deux approches dans un nouveau système de surveillance (NewMS). Les NewMS hérite des principes des deux systèmes précédents: la résilience à la dynamicité, l'exhaustivité et la tolérance aux fautes. Il peut dynamiquement surveiller l'utilisation de services et traiter les références obsolètes de manière transparente. Ces trois propositions sont implémentées dans la plateforme OSGi. Nous avons développé une application simple qui simule un système de réservation de place, qui est monitoré par notre systèmes. Nous avons également proposé différentes spécifications pour ce système. Nos résultats démontrent que le coût d'observation de notre moniteur est proche du coût d'un monitor classique, ne prenant pas en compte les problématiques liées à la dynamique.
21
Klemensevič, Ivo. "Posouzení informačního systému firmy a návrh změn." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-233134.
Full textAbstract:
The thesis deals with an analysis of information system and follow up designs on improvement of the IS in Enforcement office Brno-venkov company. Basic terms related to information’s systems are explained in the introductory part. The second part is dedicated to the information system concept, its qualities, features and requests. The company where IS is located, the analysis of the information system, elimination of risks and designs on improvement are described in the next part.
22
Strauch, Christina [Verfasser], Denise [Akademischer Betreuer] Manahan-Vaughan, and Christian [Akademischer Betreuer] Bellebaum. "Exploration of olfactory information processing within different components and associated structures of the olfactory system / Christina Strauch. Gutachter: Denise Manahan-Vaughan ; Christian Bellebaum." Bochum : Ruhr-Universität Bochum, 2016. http://d-nb.info/1099703875/34.
Full text
23
Fischer, Manfred M. "Expert Systems and Artificial Neural Networks for Spatial Analysis and Modelling: Essential Components for Knowledge-Based Geographical Information Systems." WU Vienna University of Economics and Business, 1992. http://epub.wu.ac.at/4216/1/WSG_DP_1792.pdf.
Full text
24
Akbay, Murat Lewis Steven C. "Design and implementation of an enterprise information system utilizing a component based three-tier client/server database system /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA360103.
Full text
25
Akbay, Murat, and Steven C. Lewis. "Design and implementation of an enterprise information system utilizing a component based three-tier client/server database system." Thesis, Monterey, California: Naval Postgraduate School, 1999. http://hdl.handle.net/10945/13573.
Full textAbstract:
The Naval Security Group currently requires a modem architecture to merge existing command databases into a single Enterprise Information System through which each command may manipulate administrative data. There are numerous technologies available to build and implement such a system. Component- based architectures are extremely well-suited for creating scalable and flexible three-tier Client/Server systems because the data and business logic are encapsulated within objects, allowing them to be located anywhere on a network. The first tier represents the visual aspects of the data on the client side. The middle tier consists of server objects that represent the persistent data and enforce the business logic functions. The third tier maintains the database management systems. The client interacts with the middle-tier server objects via Common Object Request Broker Architecture. CORBA provides a language and platform independent architecture that enables objects to transparently make requests and receive responses in a distributed environment. Java is an object- oriented, multi-threaded, secure mobile code system that allows applications to run on all major computing platforms. This thesis examines the design of an EIS using Java Applets that use Inter-Orb Protocol to communicate with CORBA middle- tier server objects. The third tier will incorporate Java Database Connectivity to communicate with database management systems.
26
Ridikaitė, Milda. "Metaprojektavimo aspektų realizavimas pakartotinio naudojimo technologija grindžiamose informacinėse sistemose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_142632-62585.
Full textAbstract:
Dokumento tikslas yra pristatyti pakartotinio panaudojimo technologijos, komponentais grįsto projektavimo ir metaprojektavimo aspektų simbiozės. Simbiozė realizuojama per programinės įrangos architektūros modelį ir rinkinį pakartotinio panaudojimo komponentų, kurie sukurti įtraukti galutinį vartotoją į programinės įrangos procesą kaip projektuotoją.The aim of this paper is to present symbiosis of reuse technology, component based design and meta-project aspects. Symbiosis occurs through software architectural model and set of reusable components designed to involve end-user to software development process as designer. Theoretical background of specified model is delivered in the beginning sections of this thesis. As experimental solution information system was introduced. System provides a pack of highly configurable and customizable components designed to achieve common tasks. Unexpected or rare tasks are solved by providing extra components, which are developed and integrated to entire system according predefined rules. Several complete definitions and application areas of those components are given. Paper also includes statistics about reusable component life cycle in different software projects: how often they are reused and for what purpose. Thesis is concluded with pros and cons of suggested model.
27
Pešava, Jan. "Tvorba komponent pro Adobe CQ5." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2014. http://www.nusl.cz/ntk/nusl-224682.
Full textAbstract:
The goal of the thesis is to analyze and describe a creation of components for system of Adobe CQ5. Resulting components will be subsequently implemented and integrated into the system. The partial goal is to create a thesis that helps other programmers create components for this system.
28
Qiao, Jiming. "Towards the development of a component-based urban planning support system /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22030372.
Full text
29
Gustavsson, Tomas, and Elvelin Pedro Muänoz. "ABC och ekonomisystem : En studie av Volvo Construction Equipment Components AB." Thesis, Linköping University, Department of Management and Economics, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-774.
Full textAbstract:
The accounting information system comprises budgeting, accounting, and costing. The accounting information system has, traditionally, constituted an integrated system where the different elements collaborate. If ABC is introduced this order is disturbed, since ABC is based on another logic which cannot easily be integrated with budget and accounting. ABC, therefore, is usually used parallely to the conventional costing method. There are, however, companies that have taken its ABC one step further by letting it replace the old costing model and integrate it with the accounting information system. Our purpose is to describe how a well-integrated ABC has been designed and analyse its general possibilities to create an integrated ABC and accounting information system. In order to fulfil this purpose we have based our empirics on interviews and internal documents from our case company; a subsidiary to Volvo. In the case we have studied, a high degree of integration has been achieved through a partial adaptation of ABC as well as the remaining components of the accounting information system. The account of overhead revenues has changed from focusing on hours to register based on articles produced. The budget, at a whole, continues unchanged, but some rationalisations in the budget process have been a positive consequence of the adoption of ABC. ABC has been adapted by letting the accounts plan and the cost pool structure remain unchanged and no division based on activities has been realised. The procedure of the studied case can be applicable to other constructing enterprises facing the decision to adopt or integrate ABC to its accounting information system.
30
Vitthayaprasart, Thanida, and Stasys Virbaitis. "IT/IS IN SCM– A Necessity Or Strategic Advantage? : A case study of an electrical components distributor." Thesis, Mälardalen University, School of Sustainable Development of Society and Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-6275.
Full textAbstract:
Research Questions: Is the usage of existing IT/IS in SCM just a necessity or a key factor contributing to their success for Company BETA?
Purpose: The purpose of our thesis is to describe how a successful distributor like Company BETA manages their supply chain activities, then to analyze and discuss their performances as well as the IT support on their operations.
Method: We conducted qualitative research. Our main primary data came from the interviews with employees of Company BETA while our secondary data was collected from literature books, websites, and database. The data was gathered and analyzed in the light of our literature review.
Conclusion: Company BETA’s existing IT/IS is not the main factor contributing to their success. There are more possibilities in the markets nowadays and more importantly, Company BETA could have considered and leveraged their IT/IS better.
31
Gron, Tetiana. "Contextual dependence of a business model : A study of IT companies." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-32707.
Full textAbstract:
The research presented here is dedicated to the contextual dependence of a business model assumed by an IT company. A business model may articulate the value of a specific technology, while the technology as such cannot generate value. This study starts with presenting a review of current understanding of the business model as such. This gives rise to the formulation of a pre-understanding suggesting that any business model should be dependent on its context, for its structure and functioning. This pre-understanding was tested empirically by a study of three IT companies. The key result suggests that the conception of a company’s business model may be made fruitfully in relation to the industry’s lifecycle stage. A second finding suggests that there seems to be a co-evolution of the business model and the information infrastructure that underlies and enables such a business model. The study contributes to the cross-disciplinary research by revealing relations between information technologies, business models and organizational life cycle. The outcomes of the research may help practitioners to analyze the company’s business and make better decisions.
32
Kürsten, Jens. "A Generic Approach to Component-Level Evaluation in Information Retrieval." Doctoral thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-96344.
Full textAbstract:
Research in information retrieval deals with the theories and models that constitute the foundations for any kind of service that provides access or pointers to particular elements of a collection of documents in response to a submitted information need. The specific field of information retrieval evaluation is concerned with the critical assessment of the quality of search systems. Empirical evaluation based on the Cranfield paradigm using a specific collection of test queries in combination with relevance assessments in a laboratory environment is the classic approach to compare the impact of retrieval systems and their underlying models on retrieval effectiveness. In the past two decades international campaigns, like the Text Retrieval Conference, have led to huge advances in the design of experimental information retrieval evaluations. But in general the focus of this system-driven paradigm remained on the comparison of system results, i.e. retrieval systems are treated as black boxes. This approach to the evaluation of retrieval system has been criticised for treating systems as black boxes. Recent works on this subject have proposed the study of the system configurations and their individual components. This thesis proposes a generic approach to the evaluation of retrieval systems at the component-level. The focus of the thesis at hand is on the key components that are needed to address typical ad-hoc search tasks, like finding books on a particular topic in a large set of library records. A central approach in this work is the further development of the Xtrieval framework by the integration of widely-used IR toolkits in order to eliminate the limitations of individual tools. Strong empirical results at international campaigns that provided various types of evaluation tasks confirm both the validity of this approach and the flexibility of the Xtrieval framework. Modern information retrieval systems contain various components that are important for solving particular subtasks of the retrieval process. This thesis illustrates the detailed analysis of important system components needed to address ad-hoc retrieval tasks. Here, the design and implementation of the Xtrieval framework offers a variety of approaches for flexible system configurations. Xtrieval has been designed as an open system and allows the integration of further components and tools as well as addressing search tasks other than ad-hoc retrieval. This approach ensures that it is possible to conduct automated component-level evaluation of retrieval approaches. Both the scale and impact of these possibilities for the evaluation of retrieval systems are demonstrated by the design of an empirical experiment that covers more than 13,000 individual system configurations. This experimental set-up is tested on four test collections for ad-hoc search. The results of this experiment are manifold. For instance, particular implementations of ranking models fail systematically on all tested collections. The exploratory analysis of the ranking models empirically confirms the relationships between different implementations of models that share theoretical foundations. The obtained results also suggest that the impact on retrieval effectiveness of most instances of IR system components depends on the test collections that are being used for evaluation. Due to the scale of the designed component-level evaluation experiment, not all possible interactions of the system component under examination could be analysed in this work. For this reason the resulting data set will be made publicly available to the entire research communityDas Forschungsgebiet Information Retrieval befasst sich mit Theorien und Modellen, die die Grundlage für jegliche Dienste bilden, die als Antwort auf ein formuliertes Informationsbedürfnis den Zugang zu oder einen Verweis auf entsprechende Elemente einer Dokumentsammlung ermöglichen. Die Qualität von Suchalgorithmen wird im Teilgebiet Information Retrieval Evaluation untersucht. Der klassische Ansatz für den empirischen Vergleich von Retrievalsystemen basiert auf dem Cranfield-Paradigma und nutzt einen spezifischen Korpus mit einer Menge von Beispielanfragen mit zugehörigen Relevanzbewertungen. Internationale Evaluationskampagnen, wie die Text Retrieval Conference, haben in den vergangenen zwei Jahrzehnten zu großen Fortschritten in der Methodik der empirischen Bewertung von Suchverfahren geführt. Der generelle Fokus dieses systembasierten Ansatzes liegt jedoch nach wie vor auf dem Vergleich der Gesamtsysteme, dass heißt die Systeme werden als Black Box betrachtet. In jüngster Zeit ist diese Evaluationsmethode vor allem aufgrund des Black-Box-Charakters des Untersuchungsgegenstandes in die Kritik geraten. Aktuelle Arbeiten fordern einen differenzierteren Blick in die einzelnen Systemeigenschaften, bzw. ihrer Komponenten. In der vorliegenden Arbeit wird ein generischer Ansatz zur komponentenbasierten Evaluation von Retrievalsystemen vorgestellt und empirisch untersucht. Der Fokus der vorliegenden Dissertation liegt deshalb auf zentralen Komponenten, die für die Bearbeitung klassischer Ad-Hoc Suchprobleme, wie dem Finden von Büchern zu einem bestimmten Thema in einer Menge von Bibliothekseinträgen, wichtig sind. Ein zentraler Ansatz der Arbeit ist die Weiterentwicklung des Xtrieval Frameworks mittels der Integration weitverbreiteter Retrievalsysteme mit dem Ziel der gegenseitigen Eliminierung systemspezifischer Schwächen. Herausragende Ergebnisse im internationalen Vergleich, für verschiedenste Suchprobleme, verdeutlichen sowohl das Potenzial des Ansatzes als auch die Flexibilität des Xtrieval Frameworks. Moderne Retrievalsysteme beinhalten zahlreiche Komponenten, die für die Lösung spezifischer Teilaufgaben im gesamten Retrievalprozess wichtig sind. Die hier vorgelegte Arbeit ermöglicht die genaue Betrachtung der einzelnen Komponenten des Ad-hoc Retrievals. Hierfür wird mit Xtrieval ein Framework dargestellt, welches ein breites Spektrum an Verfahren flexibel miteinander kombinieren lässt. Das System ist offen konzipiert und ermöglicht die Integration weiterer Verfahren sowie die Bearbeitung weiterer Retrievalaufgaben jenseits des Ad-hoc Retrieval. Damit wird die bislang in der Forschung verschiedentlich geforderte aber bislang nicht erfolgreich umgesetzte komponentenbasierte Evaluation von Retrievalverfahren ermöglicht. Mächtigkeit und Bedeutung dieser Evaluationsmöglichkeiten werden anhand ausgewählter Instanzen der Komponenten in einer empirischen Analyse mit über 13.000 Systemkonfigurationen gezeigt. Die Ergebnisse auf den vier untersuchten Ad-Hoc Testkollektionen sind vielfältig. So wurden beispielsweise systematische Fehler bestimmter Ranking-Modelle identifiziert und die theoretischen Zusammenhänge zwischen spezifischen Klassen dieser Modelle anhand empirischer Ergebnisse nachgewiesen. Der Maßstab des durchgeführten Experiments macht eine Analyse aller möglichen Einflüsse und Zusammenhänge zwischen den untersuchten Komponenten unmöglich. Daher werden die erzeugten empirischen Daten für weitere Studien öffentlich bereitgestellt
33
喬繼明 and Jiming Qiao. "Towards the development of a component-based urban planning support system." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31240914.
Full text
34
Alšauskas, Žydrūnas, Linas Kozlovskis, and Raimondas Mačionis. "Komponentinio IS modelio transformavimo sistema." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080128_104157-44500.
Full textAbstract:
Kuriant informacines sistemas, tenka kurti tuos pačius sistemos komponentus, o sistemą realizuojant komponentinio modeliavimo principu, galima panaudoti jau sukurtus komponentus juos papildant, susiaurinant bei pagal poreikius koreguojant. Pagrindinis darbo tikslas - integruoti veiklos modelį ir detalų IS projekto modelį, panaudojant komponentinį sistemos projektavimo metodą. Darbe išanalizuotos Magic Draw UML 12.5 galimybės, sukurtas profailas, skirtas nubraižyti komponentinį IS modelį. Realizuota komponentinio modelio transformacijos į klasių modelį programinė įranga, sukurta MS Visual Studio .NET 2005, kuri sugeba atlikti komponentinio IS modelio transformavimą į UML klasių modelį. Atliktas eksperimentas, palygintas sukurta programine įranga sugeneruotų komponentų programinis kodas su „Magic Draw UML 12.5“ programine įranga generuotais klasių aprašais.Presented work covers an approach to applications development based on the principles of the model-driven architecture and using the component-based system model (CBSM). The CBSM helps to refine main components and interfaces of the application at the design stage. The information system’s architecture is structured considering a business system as a set of different domains (Business, Data, Information process) with definite types of components, and with interfaces between the components of different types. Presented work is topical, when creates the same information system’s components. These components can be used and they can be modified or changed. Component - based model transformation system is created and tested with special project.
35
Petrošiūtė, Martyna. "Komponentinio modelio taikymas gamybos apskaitos sistemos projektavime." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_142137-82342.
Full textAbstract:
Šiame darbe ištirta ir patikslinta komponentnio modelio taikymo informacinės sistemos projektavime technologija. Esamos veiklos modelio transformavimo taisyklės papildytos naujomis taisyklėmis. Komponentinis modelis palygintas su kitu reikalavimų specifikacijos modeliu (UML notacijos Use Case modeliu) ir nustatyta, kad komponentinis modelis labiau detalizuoja architektūrinį sistemos aprašymą. Eksperimentiškai įrodyta, kad komponentinio sistemos modelio (informacinės sistemos architektūros projekto) komponentai atitinka sukurtos gamybos apskaitos sistemos programinės įrangos komponentus ir duomenų bazės objektus.In this work was detail analysed component model and implemented for design of production accounting system. For the formation component model was appended new rules to the existing rules. Component model was compared with use case model and found, that component model is more detailed, than use case model. After detail analyse was found, that components of component model matches components of developed system and objects of database.
36
Wilhelm-Stein, Thomas. "Information Retrieval in der Lehre." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-199778.
Full textAbstract:
Das Thema Information Retrieval hat insbesondere in Form von Internetsuchmaschinen eine große Bedeutung erlangt. Retrievalsysteme werden für eine Vielzahl unterschiedlicher Rechercheszenarien eingesetzt, unter anderem für firmeninterne Supportdatenbanken, aber auch für die Organisation persönlicher E-Mails. Eine aktuelle Herausforderung besteht in der Bestimmung und Vorhersage der Leistungsfähigkeit einzelner Komponenten dieser Retrievalsysteme, insbesondere der komplexen Wechselwirkungen zwischen ihnen. Für die Implementierung und Konfiguration der Retrievalsysteme und der Retrievalkomponenten werden Fachleute benötigt. Mithilfe der webbasierten Lernanwendung Xtrieval Web Lab können Studierende praktisches Wissen über den Information Retrieval Prozess erwerben, indem sie Retrievalkomponenten zu einem Retrievalsystem zusammenstellen und evaluieren, ohne dafür eine Programmiersprache einsetzen zu müssen. Spielemechaniken leiten die Studierenden bei ihrem Entdeckungsprozess an, motivieren sie und verhindern eine Informationsüberladung durch eine Aufteilung der LerninhalteInformation retrieval has achieved great significance in form of search engines for the Internet. Retrieval systems are used in a variety of research scenarios, including corporate support databases, but also for the organization of personal emails. A current challenge is to determine and predict the performance of individual components of these retrieval systems, in particular the complex interactions between them. For the implementation and configuration of retrieval systems and retrieval components professionals are needed. By using the web-based learning application Xtrieval Web Lab students can gain practical knowledge about the information retrieval process by arranging retrieval components in a retrieval system and their evaluation without using a programming language. Game mechanics guide the students in their discovery process, motivate them and prevent information overload by a partition of the learning content
37
Motta, Eduardo Giovannetti. "A$: arquitetura de componentes de software aplicados à produção brasileira de laranjas." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-23012008-102601/.
Full textAbstract:
Este trabalho apresenta a proposta de desenvolvimento de componentes de software orientados a serviço para prover informações financeiras e fitossanitárias, aplicadas ao mercado brasileiro de laranjas. O setor citrícola brasileiro produz metade do suco de laranja no mundo e é o responsável por 80% da comercialização internacional, gerando 420 mil empregos diretos e movimentando anualmente US$ 5,0 bilhões em negócios. A cada ano a produção de laranja aumenta, fazendo com que os produtores rurais necessitem de informações confiáveis para o apoio à decisão. O desenvolvimento dos componentes foi elaborado através de uma arquitetura de referência para sistemas de informação orientados a serviço. Esta arquitetura está dividida em camadas lógicas que definem a apresentação, integração, troca de informações e serviços de software. Os componentes desenvolvidos integram a camada de serviço fornecendo os custos operacionais, a previsão de ocupação de mão de obra, a série mensal de preços e o calendário fitossanitário. Como prova de conceito foi desenvolvido um software para apoio à decisão que utiliza os componentes financeiro e fitossanitário desenvolvidos. O objetivo deste software é apoiar o produtor a obter uma melhor utilização de seus recursos, e com isso aumentar a produtividade. A principal contribuição deste trabalho é disseminar a arquitetura de componentes abertos para a agricultura, a proposição e elaboração de dois novos componentes financeiro e fitossanitário e a implementação de uma ferramenta de auxílio à tomada de decisão no processo de produção de laranjas.This work presents a service-oriented software component development proposal to provide financial and phytosanitary information applied to the Brazilian orange market. The Brazilian citric sector produces half of the world\'s orange juice and is responsible for 80% of the international commercialization, creating 420 thousand direct jobs and moving annually US$ 5,0 billion in business. Each year the orange production increases, making the rural producers need reliable information for decision support. The development of the components was elaborated on a reference architecture for service-oriented information systems. This architecture is divided in logical layers that define the presentation, integration, information exchange and software services. The components developed integrate the service layer, providing the operational costs, the occupation forecast, the monthly price series and the phytosanitary plant timetable. As proof of concept, a software was developed for decision support that uses the financial and phytosanitary components that were developed. The objective of this software is support the producer to obtain a better use of his resources and as a result increase his productivity. The main contribution of this work is disseminating the architecture of open components for agriculture, the proposition and elaboration of two new components for the architecture and the implementation of a tool to aid in decision-making in the process of orange production.
38
Risinger, Tore, and John Tinnerholm. "Visualisering av komplexa system." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-131026.
Full textAbstract:
Mjukvaruutveckling är en komplicerad uppgift och olika visualiseringstekniker har genom åren använts för att underlätta förståelsen och underhållbarheten av mjukvara. I detta arbete har en prototyp tagits fram för att underlätta navigering och förståelse för mjukvarukomponenter i utvecklingsverktyget Arctic Studio. En intervju- baserad användarundersökning användes för att förstå aktuella brister med nuvarande presentationsmönster i Arctic studio och ta reda på hur användarna arbetar med verktyget. Prototypens design baserades på resultatet av användarundersökningen. Den slutgiltiga prototypen bestod utav tre delar. Ett polärdiagram för att visa komponenter och dess grannar, en matrisbaserad visualisering för att visa en vald komponents portar och dess kopplingar samt en riktad trädgraf för att visualisera hur information propagerar genom systemet. Den framtagna prototypen evaluerades med hjälp av kognitiva genomgångar med interna utvecklare.Software development is a complicated task and different visualisation techniques have been used during the years to facilitate understandability and maintenance in software systems. In this thesis a proof of concept has been developed to augment navigation and understandability for software components in the integrated software development environment Arctic Studio. An interview based user survey was conducted to identify issues with the current environment in Arctic Studio, and to find out current usage patterns in the user base. The design of the prototype was based on the result of the user survey. The final prototype consisted of three parts. A radian diagram was used to provide a neighbourhood view for the different compositions of the system, a matrix based visualisation complemented this view to show a selected components ports and connections. The last part consisted of a directed tree graph to visualize the connection hierarchy for a selected port. The prototype was then evaluated using a cognitive walkthrough with internal developers.
39
Wistrand, Kai. "Method rationale revealed : communication of knowledge in systems development methods." Doctoral thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-6180.
Full textAbstract:
The practice of developing information systems with the support of information systems development methods is not new. A vast number of systems development methods have been suggested over the years in an attempt to solve the problems a development organisation might encounter. From early approaches like the Waterfall model to more modern monolithic methods such as the Rational Unified Process and the newest approaches exemplified in the Agile methods, the ambition has often been to find the silver bullet and the most effective ways to produce quality systems. Methods are prescriptive by nature as they suggest action and as such they represent rationale. Thus, one can speak of a method rationale as the dimension within methods that motivate their existence. Method rationale is understood as the goal and value rational relations between a method’s underlying philosophy and its proposed actions. During the methods’ evolution, the practice of systems development and the supporting systems development methods have been subjected to research from many perspectives. One possible way to understand the nature of the existing research is to separate it into two fields. The suggested fields have different strengths and weaknesses. The field of traditional research on information systems development (ISD) emphasise relevance in their studies but often overlook aspects of generalisation. The field of method engineering (ME) is highly formalistic and emphasise rigour but often miss aspects concerning relevance, such as the role methods play in peoples daily systems development efforts. In this dissertation, a polarisation of existing systems development method research is suggested in order to find a synthesis more capable of serving as a common ground for method research and for the understanding of the systems development method phenomenon. This is achieved through a proposed extension of the field of ME into the field of extended method engineering (EME). The foundation of the EME is found in the concept of method rationale and a method component concept design capable of carrying and expressing method rationale. The method component concept design is applied, evaluated, and re-designed in three different empirical settings in order to ascertain its practical potential and the benefits in explicating the dimension of method rationale.
40
Tabrez, Shams, and Islam Jan. "Documentation and Agile Methodology." Thesis, Uppsala universitet, Institutionen för informatik och media, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-212653.
Full textAbstract:
Computer science in general and software engineering in specific is changing very fast. Software engineers are constantly using more innovative and more efficient ways to develop new software than in the past. This continuous evolution of software development methodologies has a great impact on both the software developed and the environment that the developers work-in. Agile software development methodologies are used to overcome many issues in the software development processes. One of the issues which still exists and needs to be addressed is the preparation of proper documentation along with the software. The work presented in this dissertation focuses on software documentation. The work starts by a thorough literature review which focuses on different aspects of software documentation and different agile methodologies. The thesis focuses on finding out the challenges that the developers faces during their development process. Two major questions addressed in the thesis. First one is to find the motivation to document in agile envirionment, whih is based on the hypothesis that there do exist a motivation. The second question is that how should documentation be produced such that we could avoid maximum possible potential problems. These questions are addressed with the help of different perspectives of the stockholders (i.e. developers and users) and the existing methods for documentation. A questionnaire was developed based on the nine categories of documentation, like user documents and system documents etc.. It included different questions related to the types of documents created in software development processes, the software development stage at which the documents are created and the importance of the documents. Questions from this questionnaire are then posted on agile specific discussion forums. Where many experienced and fresh practitioners participated in the discussion. We had a detailed discussion on every component of documentation and problems were identified by the practitioners. The questionnaire was also sent to different companies practicing agile methodology. we received about 14 responses as it was detailed questionnaire with about 34 questions. The responses of the discussion forum and survey are then analyzed and conclusions were drawn. The conclusions include that all the participants consider software documentation very important to the success of a software development project. the question of motivation is answered from the literature and opinions we received from experienced practitioners. While seven factor are identified that affect your documentation, to help solve the question of how should documentation be done.
41
Förster, Stefan. "A Formal Framework for Modelling Component Extension and Layers in Distributed Embedded Systems." Doctoral thesis, Universitätsbibliothek Chemnitz, 2007. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200700638.
Full textAbstract:
Der vorliegende Band der wissenschaftlichen Schriftenreihe Eingebettete Selbstorganisierende Systeme widmet sich dem Entwurf von verteilten Eingebetteten Systemen. Einsatzgebiete solcher Systeme sind unter anderem Missions- und Steuerungssysteme von Flugzeugen (Aerospace-Anwendungen) und , mit zunehmender Vernetzung, der Automotive Bereich. Hier gilt es höchste Sicherheitsstandards einzuhalten und maximale Verfügbarkeit zu garantieren. In dieser Arbeit wird diese Problematik frühzeitig im Entwurfsprozess, in der Spezifikationsphase, aufgegriffen. Es werden Implementierungsvarianten wie Hardware und Software sowie Systemkomponenten wie Berechungskomponenten und Kommunikationskomponenten unterschieden. Für die übergreifende Spezifikation wird auf Grundlage des π-Kalküls ein formales Framework, das eine einheitliche Modellierung von Teilsystemen in den unterschiedlichen Entwurfsphasen unterstützt, entwickelt. Besonderer Schwerpunkt der Untersuchungen von Herrn Förster liegt auf Erweiterungen von Systemspezifikationen. So wird es möglich, Teilkomponenten zu verändern oder zu substituieren und die Gesamtspezifikation auf Korrektheit und Konsistenz automatisiert zu überprüfenThis volume of the scientific series Eingebettete, selbstorganisierende Systeme (Embedded Self-Organized Systems) gives an outline of the design of distributed embedded systems. Fields of application for such systems are, amongst others, mission systems and control systems of airplanes (aeronautic applications) and - with increasing level of integration - also the automotive area. In this area it is essential to meet highest safety standards and to ensure the maximum of availability. Mr Förster addresses these problems in an early state of the design process, namely the specification. Implementation versions like hardware and software are differentiated as well as system components like computation components and communication components. For a general specification Mr Förster develops a formal framework based on the pi-calculus, which supports a standardised modelling of modules in different design steps. The main focus of Mr Förster's research is the extension of system specifications. Therefore it will be possible to modify or substitute modules and to check automatically the correctness and consistency of the total specification. Mr Förster can prove the correctness of his approach and demonstrates impressively the complexity by clearly defined extension relations and formally verifiable embedding in the pi-calculus formalism. A detailed example shows the practical relevance of this research. I am glad that Mr Förster publishes his important research in this scientific series. So I hope you will enjoy reading it and benefit from it
42
Henriksson, David, and Eliaz Sundberg. "Evaluation of the NESizer2 method as a means of wrapping embedded legacy systems." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-247909.
Full textAbstract:
Legacy computer systems are systems where several of the main hardware and software components date back several decades. Modernizing these systems is often considered a large monetary and temporal investment with high risk, and to keep maintaining them usually becomes more and more difficult over time, which is why these legacy systems are still being used to this day in many industry sectors. A solution is therefore to try and integrate the legacy system components into modern systems, and there are several ways of achieving this. This bachelor thesis project work aims to analyze one approach known as “wrapping”. More specifically it analyzes NESizer2 Method, a method which utilizes relatively simple hardware and software interfaces to control the Ricoh RP2A03 processor found in the Nintendo Entertainment System, using an Atmega328 microprocessor. During the design and development phases of the project work a literature study was conducted, and experimental research method was utilized. The testing and experimental phases of the project work was focused on examining how identified key variables behaved when modifying certain parameters in the system. While we were able to produce some valid data, the results proved to be somewhat inconclusive, as certain operations such as memory operations did not work, leading to the conclusion that our circuit contained a faulty component.Legacydatorsystem är system där många av de huvudsakliga hårdvaruoch mjukvarukomponenterna är flera decennier gamla. Att modernisera dessa system ses ofta som en stor monetär och tidsmässig investering, och att fortsätta att underhålla dem blir vanligtvis svårare och svårare med tiden. En lösning är därför att försöka att integrera legacy-systemets komponenter i moderna system, och det finns ett flertal tillvägagångssätt att uppnå detta. Detta kandidatexamensarbete ämnar att analysera ett tillvägagångssätt känt som “wrapping”. Mer specifikt analyseras NESizer2-metoden, en metod som utnyttjar relativt enkla hårdvaruoch mjukvarugränssnitt till att kontrollera Ricoh 2A03-processorn som finns i Nintendo Entertainment System, med hjälp av en Atmega328 mikroprocessor. Under designoch utvecklingsfaserna av projektarbetet utfördes en litteraturstudie, och experimentiell forskningsmetod användes. Testoch experimentfaserna av projektarbetet fokuserade på att undersöka hur identifierade nyckelvariabled betedde säg då man modifierade vissa parametrar i systemet. Även om vi lyckades producera en del riktig data visade sig resultaten vara ofullständiga, då vissa operationer såsom minnesoperationer inte fungerade, vilket ledde till slutsatsen att vår krets innehöll en defekt komponent.
43
Häger, Erik. "Building a design system for a startup : A case study exploring how an open-source component library can assist a start-up in the creation of a design system." Thesis, Linköpings universitet, Interaktiva och kognitiva system, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-179036.
Full textAbstract:
The purpose of this thesis is to develop a deeper understanding of the potential benefits of using an open-source library when building a design system. The thesis uses a research through design approach in three steps; (1) identifying what a design system contains and the possible advantages of using one. (2) Building a design system based on an open-source library. (3) Evaluate how the new design system performs by comparing its performance to the possible advantages identified in step (1). In the result chapter, the design system is presented, and the design is motivated based on the brand identity. The discussion evaluates what pros and cons it might bring to use an open-source design system compared to the general advantages of design systems mentioned in the literature. It also evaluates the process and provides knowledge for anyone wanting to use an open-source design system. In the conclusion, this thesis argues that itis useful and time-saving for any company to use an open-source library when it comes to simpleand often recurring components. However, since every application solves specific problems, the creation of unique components is inevitable. Using already designed components could also limit the ideation process since the designer already have a toolkit to use when solving problems.
44
Zibordi, Marianna Stella. "Analise multivariada para gestão socioeconomica e ambiental da agropecuaria na Bacia hidrografica do Rio Mogi Guaçu." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257254.
Full textAbstract:
Orientador: João Luiz CardosoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
Made available in DSpace on 2018-08-04T08:31:39Z (GMT). No. of bitstreams: 1 Zibordi_MariannaStella_D.pdf: 5736879 bytes, checksum: 75d65dc6bbb72d67d144ee0dcffe8998 (MD5) Previous issue date: 2004
Resumo: Atualmente, com a ocorrência de problemas ambientais e a necessidade de conservação e preservação, a gestão dos territórios de Bacias Hidrográficas apresenta extrema importância. O objetivo do trabalho foi levantar e analisar dados socioeconômicos e físico-ambientais da Bacia Hidrográfica do Rio Mogi Guaçu, bem como fornecer subsídios para a gestão agropecuária, agrupando os municípios com características semelhantes para os dados levantados, o que poderá orientar ações conjuntas na gestão da Bacia Hidrográfica. O Estado de São Paulo é dividido em vinte e duas Unidades de Gerenciamento de Recursos Hídricos (UGRHI). A UGRHI 09 é formada pelos territórios dos municípios contidos na Bacia do Rio Mogi Guaçu e localiza-se na região nordeste do Estado de São Paulo e sudoeste de Minas Gerais, ocupando uma área de aproximadamente 15.000 km2. Foram levantados dados primários e secundários, contemplando-se os aspectos da agropecuária na referida bacia. Foram utilizados os métodos da análise fatorial em componentes principais e da classificação automática hierárquica, bem como um Sistema de Informações Geográficas para representar os dados, através de um banco de dados geo-referenciado. O procedimento foi o seguinte: seleção das variáveis que contemplam os aspectos de interesse; aplicação da análise fatorial em componentes principais (utilizando os dados secundários); utilização das coordenadas dos primeiros fatores (no máximo 5) como base para a classificação automática hierárquica; realização da análise de classificação automática hierárquica; análises dos dendrogramas para a formação dos possíveis agrupamentos; visualização dos dados e agrupamentos através do banco de dados geo-referenciado; complementação das análises utilizando as informações obtidas por meio do levantamento de dados primários. As principais características que contribuíram para o agrupamento dos municípios foram área agrícola, presença efetiva de cultura semiperene nas unidades de produção agropecuárias (upas), representada pela atividade canavieira, concentração de upas com áreas de até 50 hectares, existência da pecuária, número de máquinas e equipamentos, valor da produção agropecuária e diferentes classes de capacidade de uso do solo. A metodologia apresentada permite a realização de várias análises, podendo ser explorada de maneira dinâmica e com grande interação de informações, gerando condições muito proveitosas e de real utilidade ao desenvolvimento regional
Doutorado
Planejamento e Desenvolvimento Rural Sustentável
Doutor em Engenharia Agrícola
45
Walters, Craig M. "Application of the human-machine interaction model to Multiple Attribute Task Battery (MATB): Task component interaction and the strategy paradigm." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1347636464.
Full text
46
Pramanik, Saugata. "A Hybrid Knowledge-Based System for Process Plant Fault Diagnosis." Thesis, Indian Institute of Science, 1989. http://hdl.handle.net/2005/83.
Full textAbstract:
Knowledge-Based Systems (KBSs) represent a relatively new programming approach and methodology that has evolved and is still evolving as an important sub-area of Artificial Intelligence (AI) research. The most prevalent application of KBSs, which emerged in recent times, has been various types of diagnosis and troubleshooting. KBS has an important role to play, particularly in fault diagnosis of process plants, which involve lot of challenges starting from commonly occurring malfunctions to rarely occurring emergency situations. The KBS approach is promising for this domain as it captures efficient problem-solving of experts, guides the human operator in rapid fault detection, explains the line of reasoning to the human operator, and supports modification and refinement of the process knowledge as experience is gained.
However, most of the current KBSs in process plants are built on expert knowledge compiled in the form of production rules. These systems lack flexibility due to their process-specific nature and are unreliable when faced with unanticipated faults. Although attempts have been made to integrate knowledge based on experience and 'deep' process knowledge to overcome this lack of flexibility, very little work has been reported to make the diagnostic system flexible and usable for various plant configurations.
In this thesis, we propose a hybrid knowledge framework which includes both process-specific and process-common knowledge of the structure and behavior of the domain, and a process-independent diagnostic mechanism based on causal and qualitative reasoning. This framework is flexible and allows a unified design methodology for fault diagnosis of process plants.
The process-specific knowledge includes experiential knowledge about commonly occurring faults, behavioral knowledge about causal interactions among process-dependent variables, and structural knowledge about components' description and connectivity. The process-common knowledge comprises template models of various types of components commonly present in any process plant, constraints and confluences based on mass and energy balances between parameters across components.
The process behavioral knowledge is qualitatively represented in the form of Signed Digraph (SDG), which is converted into a set of rules (SDGrules), added with control premises for the purpose of diagnostic reasoning. Frame-objects are used to represent the structural knowledge, while rules are used to capture experiential knowledge about common faults. An interface program viz., Knowledge Acquisition Interface (KAI) aids acquisition and conversion of (i) behavioral knowledge into a set of SDG-rules and (ii) structural knowledge and experience-based heuristic rules into a set of facts.
The Diagnostic Mechanism is based on a steady state model of the process and is composed of three consecutive phases for locating a fault. The first phase is Malfunction Block Identification (MBT), which locates a malfunctioning subsystem or Malfunction Block (MB) that is responsible for causing the process malfunction. It is based on alarm data whenever violation of process parameters occurs. Once the suspected MB is identified, the second phase viz., Malfunction Parameter Identification (MPI) is invoked t o locate parameters which indicate the prime cause(s) of the fault in that MB. This is achieved by correlating various instrumentation data through causal relationships described by the SDG-rules of that MB. Finally, Malfunctioning Component Identification (MCI) phase is invoked to locate the malfunctioning component. MCI phase uses the malfunction parameter (s) obtained from previous phase and experiential and structural knowledge of that MA for this purpose.
The Diagnostic Mechanism is process-independent and, therefore, is capable of adapting to various types of plant configurations. Since, the Knowledge Base and the Diagnostic Mechanism are separate, modification of either of them can be done independently. The Diagnostic Mechanism is potentially capable of investigating symptoms that have multiple or unrelated origins. It also provides explanation facility for justifying the line of diagnostic reasoning to the human operator.
47
Salomonsson, David, and Erik Eng. "A Component-based Model of a Fuel Cell Vehicle System." Thesis, Linköpings universitet, Fordonssystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176698.
Full textAbstract:
Improving the efficiency and performance of vehicle propulsion systems has always been desirable, and with increasing environmental awareness this has become increasingly topical. A particularly strong focus today is at fossil-free alternatives, and there is a strong trend for electrification. Hybrid powertrains of different types can bring benefits in certain aspects, and there is a lot of research and development involved in the making of a new powertrain. In this thesis, a complete powertrain for a fuel cell hybrid electric vehicle is modeled, with the intention of contributing to this trend. The model can be used to investigate design choices and their impact on energy consumption. A component-based library is developed, with the purpose of being easy to implement for different configurations. The results show that it is possible to assemble and simulate a complete hybrid drivetrain, using the modeled components, while not being very computationally heavy. The developed models correspond well with reality while being modular and easy to implement.
48
Förster, Stefan. "A Formal Framework for Modelling Component Extension and Layers in Distributed Embedded Systems." TUDpress, 2006. https://monarch.qucosa.de/id/qucosa%3A18707.
Full textAbstract:
Der vorliegende Band der wissenschaftlichen Schriftenreihe Eingebettete Selbstorganisierende Systeme widmet sich dem Entwurf von verteilten Eingebetteten Systemen.
Einsatzgebiete solcher Systeme sind unter anderem Missions- und Steuerungssysteme von Flugzeugen (Aerospace-Anwendungen) und , mit zunehmender Vernetzung, der Automotive Bereich. Hier gilt es höchste Sicherheitsstandards einzuhalten und maximale Verfügbarkeit zu garantieren.
In dieser Arbeit wird diese Problematik frühzeitig im Entwurfsprozess, in der Spezifikationsphase, aufgegriffen. Es werden Implementierungsvarianten wie Hardware und Software sowie Systemkomponenten wie Berechungskomponenten und Kommunikationskomponenten unterschieden. Für die übergreifende Spezifikation wird auf Grundlage des π-Kalküls ein formales Framework, das eine einheitliche Modellierung von Teilsystemen in den unterschiedlichen Entwurfsphasen unterstützt, entwickelt.
Besonderer Schwerpunkt der Untersuchungen von Herrn Förster liegt auf Erweiterungen von Systemspezifikationen. So wird es möglich, Teilkomponenten zu verändern oder zu substituieren und die Gesamtspezifikation auf Korrektheit und Konsistenz automatisiert zu überprüfen.This volume of the scientific series Eingebettete, selbstorganisierende Systeme (Embedded Self-Organized Systems) gives an outline of the design of distributed embedded systems. Fields of application for such systems are, amongst others, mission systems and control systems of airplanes (aeronautic applications) and - with increasing level of integration - also the automotive area. In this area it is essential to meet highest safety standards and to ensure the maximum of availability. Mr Förster addresses these problems in an early state of the design process, namely the specification. Implementation versions like hardware and software are differentiated as well as system components like computation components and communication components. For a general specification Mr Förster develops a formal framework based on the pi-calculus, which supports a standardised modelling of modules in different design steps. The main focus of Mr Förster's research is the extension of system specifications. Therefore it will be possible to modify or substitute modules and to check automatically the correctness and consistency of the total specification. Mr Förster can prove the correctness of his approach and demonstrates impressively the complexity by clearly defined extension relations and formally verifiable embedding in the pi-calculus formalism. A detailed example shows the practical relevance of this research. I am glad that Mr Förster publishes his important research in this scientific series. So I hope you will enjoy reading it and benefit from it.
49
CHEN, XINBEI. "A KNOWLEDGE MANAGEMENT MODEL FOR E-BUSINESS WORLD." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1014841051.
Full text
50
Nalini, Ramakrishna Sindhu Kanya. "Component importance indices and failure prevention using outage data in distribution systems." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-287173.
Full textAbstract:
Interruptions in power supply are inevitable due to faults in power system distribution network. These interruptions are not only expensive for the customers but also for the distribution system operator in the form of penalties. Increase in system redundancy or the use of component-specific sensors can help in reduction of interruptions. However, these options are not always economically feasible. Therefore, there is a need to check for other possibilities to reduce the risk of outages. The data stored in substations can be used for reducing the risk of outages by deriving component importance indices followed by ranking and predicting the outages. This thesis presents component importance indices derived by identifying the critical components in the grid and assigning index based on certain criterion. The model for predicting the faults is based on the weather conditions observed during the outages in the past. Component importance indices are derived and ranked based on the de-energisation time of components, frequency and impact of outages. This helps prioritize components according to the chosen criterion and adapt monitoring strategies by focusing on the most critical components. Based on categorical Naive Bayes, a model is developed to predict the probability of fault/failure, location and component type likely to be affected for a given set of weather conditions. The results from the component importance indices reveal that each component’s rank varies based on the chosen criterion. This indicates that certain components are critical with respect to specific criterion and not all criteria. However, some components are ranked high in all the methods. These components are critical and need focused monitoring. The reliability of results from component importance indices to a great extent depends on the time frame of the outage data considered for analysis. The prediction model can alert the distribution system operator regarding the possible outages in the network for a given set of weather conditions. However, the prediction of location and component type likely to be affected is relatively inaccurate, since the number of outages considered in the time frame is low. By updating the model regularly with new data, the predictions would be more accurate.Avbrott i strömförsörjningen är oundvikliga på grund av fel i distributionsnätet för kraftsystemet. Dessa avbrott är inte bara dyra för kunderna utan också för distributionssystemoperatören i form av påföljder. Ökad systemredundans eller användning av komponentspecifika sensorer kan hjälpa till att minska avbrott. Dessa alternativ är dock inte alltid ekonomiskt genomförbara. Därför är det nödvändigt att kontrollera om det finns andra möjligheter för att minska risken för avbrott. Data lagrade i transformatorstationer kan användas för att minska risken för avbrott genom att härleda komponentviktindex följt av rangordning och förutsäga avbrott. I denna avhandling härleds viktighetsindex genom att identifiera de kritiska komponenterna i nätet och tilldela index baserat på vissa kriterier. Felprognoserna gjordes baserat på de väderförhållanden som observerades under avbrott. komponentviktighetsindex härleds och rankas baserat på komponenternas urladdningstid, frekvens och påverkan av avbrott. Detta hjälper till att prioritera komponenter enligt det valda kriteriet och anpassa övervakningsstrategier genom att fokusera på de mest kritiska komponenterna. Baserat på kategoriska Naive Bayes utvecklas en modell för att förutsäga sannolikheten för fel / fel, plats och komponenttyp som sannolikt kommer att påverkas under en viss uppsättning väderförhållanden. Resultaten från komponentviktighetsindexen visar att varje komponents rang varierar beroende på det valda kriteriet. Vissa komponenter rankas dock högt i alla metoder. Dessa komponenter är kritiska och behöver fokuserad övervakning. Tillförlitligheten hos resultat från komponentviktindex beror till stor del på tidsramen för avbrottsdata som beaktas för analys. Prognosmodellen kan varna distributionssystemoperatören om möjliga avbrott i nätverket för en viss uppsättning väderförhållanden. Förutsägelsen av plats och komponenttyp som sannolikt kommer att påverkas är dock relativt felaktig, eftersom antalet avbrott som beaktas i tidsramen är lågt. Genom att uppdatera modellen regelbundet med nya data skulle förutsägelserna vara mer exakta.