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1
Walther, David A. "A user-definable office information system." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5953.
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This thesis investigates the design and implementation of an Office Information System that allows user input in defining a system for the office environment. This system has a limited knowledge of its domain, as an expert system. This knowledge is provided by users, and specified in terms of production rules. The system allows users to tailoring of the system to best meet their own requirements. The system has been implemented in Common Lisp on a VAX computer.
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Sun, Jun. "User readiness to interact with information systems - a human activity perspective." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4316.
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This study focuses on how and why people become ready to interact with certain
information systems (IS) based on their previous experiences with the same and/or
similar systems. User-system interaction can be regarded as a mediated and collaborative
human activity between a user and a system with the motive of transforming raw
information into useful outcome. Using Activity Theory as a paradigm, this study
conceptualizes a user-system interaction model that specifies the mediating relationships
involved.
Based on the user-system interaction model, this study proposes a psychological
construct, Information System Interaction Readiness (ISIR), that indicates how an
individual is prepared and willing to interact with a system within a user context. This
construct advances a developmental view of how previous IS experiences may affect
user future behavior. Compared with other constructs as predictors of user behavior,
such as computer self-efficacy and intention to use, ISIR takes how IS user behavior is
mediated into account. To operationalize and measure the ISIR construct, this study develops a
measurement instrument for ISIR using the technique of facet analysis and the semantic
differential scale type. To explore how user experiences with a system lead to the
formation of ISIR, this study identifies the psychological antecedents of ISIR. This
enables the discussion of how general IS capabilities, including interactivity,
personalization and context-awareness, may affect ISIR through these antecedents.
Because ISIR is a user-, system- and context-specific construct, this study also
identifies and discusses the personal and situational factors that may affect ISIR. Putting
all these relationships together results in a research framework of ISIR. To validate the
ISIR measurement instrument and test the ISIR research framework, several laboratory
studies were conducted. The results indicated that the ISIR instrument was valid and the
ISIR framework was sound. Finally, the contributions and limitations of this study are
discussed.
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Chang, Tae-Young. "User-activity aware strategies for mobile information access." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22595.
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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008.Committee Chair: Raghupathy Sivakumar; Committee Member: Chuanyi Ji; Committee Member: George Riley; Committee Member: Magnus Egerstedt; Committee Member: Umakishore Ramachandran.
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Mullany, Michael John. "An analysis of the relationship between analyst-user cognitive style differences and user resistance to information systems." Master's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/15855.
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Bibliography: pages 102-109.This study investigated the relationships between user resistance to new information systems and other factors, the chief of which was the differences in cognitive problem-solving styles between systems developers (analysts) and users. In addition, associations were tested between user resistance and the following: system accuracy, system reliability, the analyst's attitude, the analyst-user relationship, analyst-user dissonance, the user's age and the user's length of service with his current employer. All data was collected at confidential interviews with the key users and key analysts of 34 post-implementation systems service were recorded at these interviews. Ages and lengths of User resistance was determined from the number of complaints made by users regarding the systems and their manner of implementation. Cognitive style was measured using the Kirton Adaption-innovation Inventory (KAI). All other parameters were measured as responses to suitably phrased questions, quantified using seven-point scales. A significant positive association between user resistance and analyst-user cognitive style difference was found. A model was then developed which enables the estimation of user resistance prior to system development with the aid of the KAI. Significant negative associations were found to exist between user resistance and system accuracy, and user resistance and system reliability. No relationships between user resistance and either user age or user length of service were found.
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Herald, William Joseph. "An analysis of factors influencing general user information satisfaction including system-specific user information satisfaction." Connect to resource, 1996. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=osu1267623116.
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Gatian, Amy Elizabeth Williams. "User information satisfaction (UIS) and user productivity: an empirical examination." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54361.
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In this research the relationships between user information satisfaction (UIS) and user productivity were examined. Two users groups were used to test the following hypotheses:
H₁A: There is no relationship between UIS and perceptions of decision-making quality for academic department heads.
H₁B: There is no relationship between UIS and perceptions of decision-making quality for managers within the controller’s office.
H₂: There is no relationship between UIS and objectively measured productivity for managers within the controller’s office.
H₃: There is no relationship between UIS and a user’s length of experience with a system.
H₄A: There is no relationship between UIS and a user’s age.
H₄B: There is no relationship between UIS and a user’s sex.
H₄C: There is no relationship between UIS and a user’s level of education.
Data utilized in testing the hypotheses were collected with a packet of six questionnaires mailed to the controllers of 100 universities. Usable responses were obtained from 107 of 300 controller’s office managers and 77 of 300 academic users. H₁A, H₁B and H₂ were tested with canonical correlation analysis. H₃, H₄A, H₄B and H₄C were tested with multiple regression.
The findings can be summarized as follows:
1. Satisfaction with computer processing was correlated with making better operating budget decisions for both groups and helping academic users track activities in research, grant and designated gift accounts.
2. Satisfaction with system related problem finding was correlated with elimination of steps and making jobs easier for managers, and with helping academic users track activity in research accounts, and to feel they have benefited overall from FRS.
3. Satisfaction with the linear combination of inputs and problem finding was correlated with financial transactions per full time employee equivalents (FTE), late internal reports per total internal reports and number of ledger accounts per FTE.
4. More frequent users of FRS were more satisfied. Additionally, UIS and mandatory system usage were positively correlated.
5. UIS and sex were moderately correlated. Specifically, males within the academic group were less satisfied with FRS than the females surveyed.Ph. D.
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Ul, Haq Raza. "Hybrid Recommender System Towards User Satisfaction." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24218.
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An individual’s ability to locate the information they desire grows more slowly than the rate at which new information becomes available. Customers are constantly confronted with situations in which they have many options to choose from and need assistance exploring or narrowing down the possibilities. Recommender systems are one tool to help bridge this gap. There are various mechanisms being employed to create recommender systems, but the most common systems fall into two main classes: content-based and collaborative filtering systems. Content-based recommender systems match the textual information of a particular product with the textual information representing the interests of a customer. Collaborative filtering systems use patterns in customer ratings to make recommendations. Both types of recommender systems require significant data resources in the form of a customer’s ratings and product features; hence they are not able to generate high quality recommendations. Hybrid mechanisms have been used by researchers to improve the performance of recommender systems where one can integrate more than one mechanism to overcome the drawbacks of an individual system.
The hybrid approach proposed in this thesis is the integration of content and context-based with collaborative filtering, since these are the most successful and widely used mechanisms. This proposed approach will look into the integration of content and context data with rating data using a different mechanism that mainly focuses on boosting a customer’s trust in the recommender system. Researchers have been trying to improve system performance using hybrid approaches, but research is lacking on providing justifications for recommended products. Hence, the proposed approach will mainly focus on providing justifications for recommended products as this plays a crucial role in obtaining the satisfaction and trust of customers. A product’s features and a customer’s context attributes are used to provide justifications. In addition to this, the presentation mechanism needs to be very effective as it has been observed that customers trust more in a system when there are explanations on how the recommended products have been computed and presented. Finally, this proposed recommender system will allow the customer to interact with it in various ways to provide feedback on the recommendations and justifications. Overall, this integration will be very useful in achieving a stronger correlation between the customers and products. Experimental results clearly showed that the majority of the participants prefer to have recommendations with their justifications and they received valuable recommendations on which they could trust.
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Eichhorn, Bradford Reese. "THE IMPACT OF USER INVOLVEMENT ON INFORMATION SYSTEM PROJECTS." Cleveland State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=csu1410793063.
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Mattia, Angela. "Achieving Solution Success: An Investigation of User Participation Approaches." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1761.
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User participation and its relationship to system success have been discussed in the information systems (IS) literature from many theoretical and practical perspectives. In reality, most of this discussion is grounded in empirical research that has yielded mixed results on the importance of user participation and its relationship to system success. The goal of this dissertation is to extend the line of inquiry into user participation during information system development by providing information systems researchers and IS practitioners with both a valid theoretical and practical investigation of a successful IS solution. This investigation organizes the study within a descriptive model that emerges from the different traditions of prior research and uncovers the approach to user participation in a successful IS solution. This user participation approach (UPA) model becomes the structure for the systematic arrangement of user participation approaches into a four-fold typology according to criteria or extrinsic information attributed to them in the research literature. A case study analysis and social network analysis of a successful IS solution will be used to describe, map and measure the relationships, activities, processes, and flows between participants, thus providing a descriptive and visual analysis of the relational structure that emerges. Indeed, these methodological approaches conceptualize the attributes and the relations of user participation during information system development and give insightful perspectives on how a successful IS solution is developed and implemented. The resulting outcome is a description of a successful approach to user participation and some practical recommendations on how to increase the chance of success in a system solution.
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Massanari, Adrienne Lynne. "In context : information architects, politics, and interdisciplinarity /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/6193.
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Oriyo, Ferry. "Evaluation of User Satisfaction with a Clinical Genetics Database." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275414472.
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Hajdinjak, Matic. "Towards a mobile user interface used for monitoring purposes in context of a Geographical Information System." Thesis, Linköpings universitet, Interaktiva och kognitiva system, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-95231.
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Mobile Geographical Information Systems are becoming a more and more important tool for presenting geographical data. They are used to support decision making processes, present an overview of distributed information or are in a form of location based services. The problem lies in the fact that mobile devices have limited resources and should still be able to present massive amounts of content. Ideally, the user and the conditions in which the program runs are well defined, but this is usually not the case. This thesis provides a sample prototype implementation of a mobile GIS developed as an alternative to an existing web-based user interface (UI). It focuses on specific conditions present on mobile devices, ways of presenting the data and possibilities of reusing existing elements from the web UI that could be suitable for the mobile environment.
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Mohammed, Abdurahman. "Evaluation of electronic prescribing system-User acceptance perspective." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-54165.
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The use of Electronic Prescribing Systems (EPS) has significant potential role in improving patient safety and reducing adverse drug events. However, the introduction of these systems can have negative outcome on delivery of care if healthcare providers are not utilizing regularly and accept it. This study aims to explore paediatrician’s attitude towards electronic prescribing systems as well as understand the possible factors affecting user acceptance at tertiary care using the Technology Acceptance Model (TAM). A qualitative research methodology was applied. Semi-structured interviews were developed according to TAM model and used as primary source of collecting empirical data. Seven research participants were interviewed. The findings of this study had identified factors that are important for paediatrician’s acceptance of EPS systems. Although paediatricians are positive to the usefulness of EPS, it appears that there are some acceptance problems due to ease of use concerns and usability issues of the system. The acceptance of EPS can be improved by leveraging ease of use as well as enhancing training.
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Deng, C. (Canrong). "Multi user support for senior citizen visual guidance system." Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201603251353.
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Due to the population aging phenomenon, the working-age population will decline in the future while the seniors’ quality of life can decline. A lot of research has been done and many of researchers figure out modern ICT and mobile technology needs to shoulder more responsibility in elderly care. The benefit of science and technology should be brought to senior citizens’ life.
Moreover, the smartphone ownership rate has been increasing in recent years, espe- cially the percentage of Android phone ownership. Because elders will take smart- phone everywhere, installing an application in senior citizen’s Android phone is a good way to track their movements. The caregivers could give guidance remotely to elders based on their location and surrounding environment scene by using mobile technology of this kind.
The multi user support for senior citizen visual guidance system consists of five components: Android phone, Pupil headset, Indicator-based Glasses, OldBirds and web server part. The system uses the Pupil headset to capture senior citizen’s font view and transfer it to OldBirds part which is controlled by caregivers. Furthermore, the Indicator-based glasses are used to show the guidance orders given by remotely caregivers. The web server part is transfer station between Android phone and OldBirds part.
Google Cloud Messaging service has already been integrated into this system so that caregivers can directly give guidance orders to senior citizens about when and where to go.
For future work I suggest, from the hardware perspective, to connect Pupil headset’s world camera and eye camera together by a USB hub. Furthermore, I recommend to combine Pupil headset and Indicator-based glasses together to remove the need for Bluetooth connection.
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Rossa, Michael. "System images : user's understanding and system structure in the design of information tools." Thesis, Royal College of Art, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602326.
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Banwell, Linda M. "PLUS : a system architecture for Personalized Library User Support." Thesis, University of Exeter, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359596.
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Alsulaiman, Fawaz Abdulaziz A. "Towards a Continuous User Authentication Using Haptic Information." Thesis, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/23946.
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With the advancement in multimedia systems and the increased interest in haptics to be used in interpersonal communication systems, where users can see, show, hear, tell, touch and be touched, mouse and keyboard are no longer dominant input devices. Touch, speech and vision will soon be the main methods of human computer interaction. Moreover, as interpersonal communication usage increases, the need for securing user authentication grows. In this research, we examine a user's identification and verification based on haptic information. We divide our research into three main steps. The first step is to examine a pre-defined task, namely a handwritten signature with haptic information. The user target in this task is to mimic the legitimate signature in order to be verified. As a second step, we consider the user's identification and verification based on user drawings. The user target is predefined, however there are no restrictions imposed on the order or on the level of details required for the drawing. Lastly, we examine the feasibility and possibility of distinguishing users based on their haptic interaction through an interpersonal communication system. In this third step, there are no restrictions on user movements, however a free movement to touch the remote party is expected. In order to achieve our goal, many classification and feature reduction techniques have been discovered and some new ones were proposed. Moreover, in this work we utilize evolutionary computing in user verification and identification. Analysis of haptic features and their significance on distinguishing users is hence examined.
The results show a utilization of visual features by Genetic Programming (GP) towards identity verification, with a probability equal to 50% while the remaining haptic features were utilized with a probability of approximately 50%. Moreover, with a handwritten signature application, a verification success rate of 97.93% with False Acceptance Rate (FAR) of 1.28% and @11.54% False Rejection Rate (FRR) is achieved with the utilization of genetic programming enhanced with the random over sampled data set. In addition, with a totally free user movement in a haptic-enabled interpersonal communication system, an identification success rate of 83.3% is achieved when random forest classifier is utilized.
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Elhorr, Suzanne. "The three dimensional relation between user system experience, user satisfaction, and user acceptance." Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12957.
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Context. The subject presented in this research is the fact that people resist IT induced change and want to maintain their current situation when implementing a new information system. If no strategy is set to deal with it, resistance to change leads to Information System failure. Objectives. In this study, the author is investigating how to anticipate and handle resistance to change when implementing a new information system in order to succeed. This is followed by introducing the factors affecting user satisfaction which in turn affects user acceptance. Methods The data collection involves interviews in order to assemble appropriate, justifiable and relevant data, in addition to surveys to measure and validate the hypotheses in this thesis. The banking sector in Lebanon was selected as a source of data collection. Results. Three factors Perceived ease of use(PEOU), Perceived Usefulness (PU), and User Involvement react together to satisfy user and hence to make the user accept change. Conclusions. Based on the studies conducted so far with respect to this topic, there exists an indirect relationship between the three factors discussed in this thesis, the user satisfaction, and the user acceptance. The more the user finds the system easy to use (simple way of work with less efforts) and useful (the extent to which person’s work is improved) and the more he/sh is involved, the more he is satisfied and hence the more he is willing to accept the change and causes system success.
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Jonsson, Åsa. "Information System Usage - a study in the Middle East." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-27952.
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The aim of this research project was to find out why the employees in the Middle East region, as a part of a large global company, did not use a project tracking information system. The research was conducted with a mixed method, starting with a qualitative study in order to gain an understanding of the problem and the current setting. Thereafter, hypotheses were tested with an e-survey sent out to the entire user group, which were around 350 persons. The outcome of the survey was surprisingly that the hypotheses, which were based on the United Theory of Acceptance and Use of Technology (UTAUT), were rejected. The findings in this study showed that if the user experiences a relative advantage with the system it has a positive effect on use as well as good data quality. This study has found that the opinions of colleagues and managers play a role on use and also the lack of integration. This research will serve as a base for future studies to investigate how the system is used and how it supports the business process. Furthermore, these findings contribute to the criticism on Technology Acceptance Model (TAM) and its successor.
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Hurd, Lyn Eric. "Evaluation of user information satisfaction of the Composite Health Care System." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28190.
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Radeskog, Jonas, Olle Söderström, and Patrik Strömstedt. "User-Technology-Acceptance Among Doctors : A Case Study Examining the Effects of Pre-Implementation Efforts MadeDuring a System-Implementation In Jönköping County Council." Thesis, Jönköping University, JIBS, Business Informatics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-9618.
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This thesis is based on a case-study of an IT-system implementation within Jönköping County Council. This new IT-system will cover, and support, all health-care related activi-ties within the County Council. The thesis is concerned with aspects that happened within the pre-implementation phase, and the thesis is furthermore only concerned with so-called „soft‟ aspects- meaning aspects that are not of a technical nature. Instead, attitudes relating to the use of the system and various qualities of the system have been measured; and sub-sequently fit into the categories of the extended Technology Acceptance Model, or TAM2, proposed by Venkatesh & Davis (2000). We have limited our research to only look at the attitudes of doctors. The doctors are also divided into two distinct user-groups: where one group has received more training than the other, and have been assigned as „super-users‟, meant to support the regular users in their use of the system, and also to help train these other, „regular-users‟. The attitudes of the various users of the system have been measured by using a qualitative method, and more specifically interviews based on the elements of the TAM2 model. The results of the interviews were analysed using a number of models and theories relevant to the subject matter. The analysis of the results, and the subsequent conclusions which are drawn as answers to the research questions will be of use in future IT-system implementations, especially within the coming rounds of implementing the spe-cific IT-system which has been studied, in the rest of the Jönköping County Council. The main conclusions which have been drawn can be summarised as the following:
The overall user-technology-acceptance of the doctors towards this system is neutral, but has a strong tendency towards a negative attitude. This conclusion is drawn through combining the perceived usefulness, and its sub-elements, with the perceived ease of use, of the doc-tors- as described in the analysis section. One of the key causes for this is the low subjec-tive norm (or outside opinion affecting attitudes) which is spread about the system. One of the key proposals to avoid these low levels of user-technology-acceptance is to meet the negative subjective norm attitudes being spread, with positive responses; and to optimise the training of all users- but to specifically improve the attitudes and knowledge of the su-per-users, which has been proven to be critical for a successful implementation. This thesis shows the importance of managing the subjective norms of the participants in the imple-mentation project, negative press in the media should in our opinion be met by positive in-formation about the system and the implementation. We have also found that should the training be performed in a satisfactory way the opinions and attitudes of the users will be positively affected. The training of the super-users has been found to be of special impor-tance as the attitudes of colleagues have been shown to be the most important for users, when building early opinions about a system.
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Meskin, Mark Israel. "Information system success and its association with user attitude, belief and involvement." Master's thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/15425.
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Bibliography: p. 103-114.The motivation for this research was twofold. The first was to explore measures of information system success. The second, to investigate the influence of user variables, specifically attitude, belief and levels of user involvement, on information system success. Although researchers agree that the aggregate organisational benefit derived from an information system is the best measure of success, no practical instrument has been employed to measure this benefit. Rather, a number of surrogate measures, specifically system use and user information satisfaction have been employed. This research explores a new measure, the "fit to objectives", as an appropriate and practical measure for information system success. It also uses this measure to establish the relationship between information system success and user involvement. User attitude, user belief and levels of user involvement have all been examined by previous research and are postulated to be positively associated to information system success. However, in testing the above postulations previous research has achieved mixed results. The major constraints in verifying the above has been a lack of accepted definitions, inappropriate measures, and poor methodologies. With the growth in the importance of the user in information systems development, a better understanding of the behavioural influences relating to the user is required. In examining these user influences, this research employs tested and proven measures based on past research from the information systems, organisational behaviour, and psychological disciplines. The research is both exploratory and empirical in nature. A focus throughout has been on the practical application of constructs and instruments and providing contributions to both information system practitioners and researchers alike.
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Miller, Ralph Rillman Atwood Michael E. "Learning and using requirements representation notations by information technology professionals /." Philadelphia : Drexel University, 2002. http://dspace.library.drexel.edu/handle/1721.1/113.
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Xiong, X. (Xiaoxiao). "Designing turn-by-turn navigation system for customized wearable user interface." Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201609132773.
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Current technological advancements in wearable intelligence allow us to migrate assistant tools from portable devices to wearable devices. Many researches with varying performance outcomes have been conducted on wearable navigation devices. However, there is no existing Bluetooth-supported turn-by-turn navigation application which supports biker and cyclist with customized wearable user interface. The purpose of this research is to try and fill this gap by investigating the usability of indicator-based smart glasses in real-world bike navigation using Bluetooth for communication. Adopting the Design Science Research (DSR) methodology, a mobile navigation application was developed that could be used with a customized wearable user interface called indicator-based smart glasses, with Bluetooth communication. Moreover, we conducted a usability test with six users in a real biking navigation task. Two paths were selected as the experiment’s environment in Oulu, Finland. We recorded the experiment’s process by a camera. And collected the feedbacks from participants by post-questionnaires. As the results, we found that the glasses can assist user accomplish navigation tasks in simple traffic without many wrong turns. However, it cannot provide clear instructions under some complex traffic.
This research can be extended in future researches by implementing a solution that provides turn-by-turn direction in the navigation application for the indicator-based smart glasses under complex traffic circumstance.
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Narayanasamy, Anbazhagan, Dinesh Madhivanan, and Sudhakar Sujith Karthikeyan. "Psychological problems when implementing an information system." Thesis, Högskolan i Borås, Institutionen Handels- och IT-högskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20383.
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Many problems related to information systems implementation are psychological rather than technical. It is necessary to adapt good enough to the current situation in the business to avoid bad user reactions. One of the most important quality factors of an information system is user acceptance. Information system implementation projects have been historically bothered by failures for which user resistance has been identified as an important reason. A poor adaptation of old data may cause user frustration. But the most important problem perhaps is how to deal with the people and know their psychological constraints involved in the system change, their lack of competence And also their reluctance to accept the new system. A poorly designed system interface also becomes an obstacle for the users and they would become more unwilling to tolerate it. This study presents a theoretical and empirical understanding of user acceptance during the implementation of an information system and provides suggestions to an individual and also organizations for tackling such resistance and enhances user satisfaction.Program: Magisterutbildning i informatik
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Wilson, Melanie. "Gender and user resistance : the failure to stabilise a nursing information system." Thesis, University of Manchester, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682188.
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This thesis is about a group of women working as qualified nurses in an NHS Trust Hospital in the North of England, and their relationship with an information system (IS) introduced onto the wards under the auspices of a major and highly contentious governmental policy of the 1980’s, the Resource Management Initiative. In relating the story of these users’ interaction with information technology (IT) two key issues are explored: the nature of IT failure and the role played by gender in the outcome of new technology adoption. In much of the recent prescriptive IS literature, the relationship of users to IS has come to be conceived as fundamental to the success and failure of technological systems. At the same time, social studies of technology (SST) have problematised the success/failure categories. By suspending disbelief concerning the inherent technological superiority of dominant artefacts, SST has shown how particular options in the developmental period of artefacts become stabilised and are defined as ’successes’ only ’after the fact’. Furthermore, ’success’ may be accomplished by virtue of the increasing adoption of the artefact, its markets created, its attributes flaunted or even because its supporters quite simply ’rewrite history’. Success and failure may thus be considered as social constructions, the result of hindsight, and the victory of one version of the technology over alternative contending accounts. Using the case study of a Nursing Information System (NIS), this thesis demonstrates the applicability of a social shaping approach to IT and software development for deconstructing the success/failure divide and providing a means to understand how failures occur within their social and organisational context. Two areas relevant to the nurse-users’ attitudes and responses are gender and nursing practice. Presenting an argument for the substantial influence of gender on computer usage in organisations, and associating this ’to a gender perspective on nursing, the scene is set for the empirical research into how these complex and sometimes contradictory issues are played out in the local setting.
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Hider, Philip Martin. "User redefinition of search goals through interaction with an information retrieval system." Thesis, City, University of London, 2004. http://openaccess.city.ac.uk/19506/.
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Search goals of users of information retrieval systems have commonly been assumed to be static and well-formed. However, a significant amount of goal redefinition is detected in the studies described. A pilot study examined user behaviour at a library OPAC, showing that search results would quite frequently induce users to reconsider and revise their search goals, sometimes following up with a new search based on this revision (labeled "strong" goal redefinition). The main analysis employed transaction logs from the OCLC FirstSearch service, investigating what factors, if any, might affect the amount of goal redefinition that takes place during a search session. To this end, ten hypotheses were proposed and considered. Within each search session, logged queries were coded according to their conceptual differences or similarities, in order for indices of strong goal redefinition to be constructed: a chronological content analysis was thus performed on the transaction logs. The indices of redefinition for search sessions on different FirstSearch databases were compared. It was found that different databases induced goal redefinition to different extents. Further analysis showed that the metadata displayed by a database appeared to affect the amount of goal redefinition, and that the presence of abstracts in results was a positive factor, as was the presence of descriptors and identifiers, perhaps because of the former's hyperlinking nature on the FirstSearch interface. On the other hand, no evidence was found to indicate that abstract length has much of an effect on goal redefinition, nor hit rate or levels of precision and recall. Of the two indices of redefinition that were produced, the "refined" index showed signs of greater precision. Implications of the findings are discussed. It is suggested that goal redefinition should be considered a positive result of system feedback, and that systems should readily allow users to follow up on redefined goals. Abstracts and summaries of documents should be presented to the user as frequently as possible, and hyperlinks from key terms in the metadata should also be created to assist evolving searches. The importance of how system feedback is encountered by the user is emphasized in a new model of information retrieval, which embraces the nonconscious as part of the "cognitive viewpoint," allowing for nonconscious information wants to enter into a user's consciousness through cues encountered during the scanning of search results, triggering a redefinition of search goal. This thesis paves the way for a considerable amount of potentially important research, including: further testing and development of the index of goal redefinition; deeper transaction log analyses, perhaps using screen recorders, examining semantic content and contextualizing at the level of the query; and further identification and analysis of the factors affecting goal redefinition, across different types of information retrieval system.
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Schneider, Matthias H. M. "The determinants and outcomes of user commitment to mandatory information system change." Doctoral thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/11352.
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Includes abstract.Includes bibliographical references (p. 248-287).
Winning the commitment and support of employees for organisational transformation is a major objective of the leaders of organisational change. However, the determinants and outcomes of employee commitment to organisational change (Herscovitch & Meyer, 2002) are still not yet fully understood, especially with regard to a mandatory information system change in a non-Western environment.
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Ngerem, Ogechi Vivian. "The necessity of concepts for end-user involvement in information system development in developing country : Case study secondary schools in Nigeria." Thesis, Högskolan i Borås, Akademin för bibliotek, information, pedagogik och IT, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-11890.
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System development has been an innovational trend in the field of Information systems in both past and present time; and users of the system is one of the key success in the development life cycle of human and computer based systems. Information system is one of the most emerging technologies in developing countries; Nigeria as a case and the development of these IS is deployed in both private and public sectors of the economy for organizational data management. Due to some characteristics of developing countries such as poor communication facilities, unequal distribution of wealth, large population and so many others, many of these information system development has been carried out for the provision of services to both public and private organizations. But on the other hand, such projects have failed in one way or the other due to poor end user involvement in or during the development process. For this research, the involvement of users in developing country and more appropriate concepts which developers/designer could possibly use to involve users for a successful system were studied. The approach to this investigation was with the use of questionnaire which was distributed to the users of two different systems which were developed using different concepts of user involvement (Scenario-based user involvement technique and Interview-based user involvement technique). Statistical Package for Social Sciences (SPSS), was used for this quantitative analysis and the Independent t-test analysis was done to prove the significance between these systems. The findings from this study shows that in the developing countries such as Nigeria, these concepts of user involvement is also applicable and Interview-based user involvement technique seem to be the more appropriate method. Further research on the combination of these concepts/techniques for end user involvement should be considered or rather the creation of an advanced technique/concept for gathering end user needs and requirements for an excellent usable system in developing countries with respect to their limiting factors as mentioned in this thesis.
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Dimitriou, Athanasios. "Joint user and symbol synchronisation for the CV-CCMA system." Thesis, University of Sussex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298674.
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Halonen, R. (Raija). "Challenges in an inter-organisational information system implementation:participatory view." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514284694.
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Abstract
A trivial information system consists of three components: a user, a container for the information and a tool to manage the information. The focus of this research is more complicated with several users and organisations, with several databases in those organisations and with an inter-organisational information system. In inter-organisational information systems information flows across boundaries and the boundaries as well as information itself must be carefully taken into account. This research takes seriously the users who represent different professions and who were more or less involved in the information system implementations. In a distributed project, also the container is under special attention. That is discussed in the dissertation, as well.
The approach in the research is mainly interpretative and subjective. The empirical material comes from several cases but three of them acted as a background for the main case that was conducted in an academic environment. The case appeared to be versatile due to its many stakeholders and it offered several topics to be explored.
The goal of the research was introduced in a meeting to the attendees: "The aim of the thesis is to describe how a joint information system of different universities was finally implemented or why it wasn't." This introduction predicted challenges that were to be overcome during the subsequent years.
In addition to the versatile case, also the information system implementation offered fruitful viewpoints for the research. Inter-organisational information system projects are described in literature to some extent. This case contributes the research with the many organisations and users that were involved in the development project. Furthermore, the information system was planned to be built on ready-made specifications and it increased the challenges to succeed. This led to the lesson that a new model to be used in information system developments is needed because existing models do not support this kind of development process. The research supports the concept that action research and design science complement each other especially in development projects when the output is an information system that has been implemented in collaboration with several users and stakeholders.
The results of this thesis emphasise the need to manage potential competition between participating organisations, lack of interaction between parties and security and user authentication. Proper project management is needed with active and confidential terms between all project members. In addition, flexible working routines are found workable.
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Bakibinga, Stella. "User Acceptance of Information Systems among Local Governments in Uganda : The Pilot of the Education Management Information System in Jinja District." Thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-17227.
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Bhutani, Mahima. "Enhancing User Experience while retrieving information via Dashboard." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262728.
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With rapid growth in technical and social sector, the amount of data produced and retrieved has grown exponentially. Hence, there is a dire need for a management information system (MIS) to manage and structure such data. This study was initiated to learn about the problems and needs of the employees of a truck manufacturer organisation while working for long duration projects. The information about processes and tasks is available but in an unstructured manner through excel spreadsheets which makes it difficult for users to retrieve required information during crucial times. An information system in the form of a dashboard was designed and proposed to overcome the problems faced by users. This study focuses on evaluating the user experience of employees while retrieving desired information about the procedures using both dashboard and excel spreadsheets. To investigate the work structure and problems of employees, interviews were conducted. The results were analysed and a dashboard solution was proposed and developed with real time data. With employees coordination, few usability tests were conducted and the feedback was recorded for future work. According to the study results, the efficiency of employees can be increased and the decision making can be improved using MIS. With better retrieval techniques user experience was also enhanced. The interactive visualisations of dashboard attracted users and was used efficiently for providing tons of information about procedures to be followed.Med den snabba tillväxten inom teknisk och social sektor har mängden data som både produceras och hämtas ökat exponentiellt. Därför finns det ett brådskande behov av informationssystem för att hanterar och strukturera sådan data. Denna studie startade med att utforska de problem och behov som fanns hos anställda på ett företag som tillverkar lastbilar när de jobbar i långvariga projekt. Informationen om rutiner, processer och uppgifter är idag tillgänglig för de anställda i ostrukturerade Excel-kalkylblad, detta gör det svårt att hämta nödvändig information. Ett informationssystem i form av en instrumentpanel utformades och föreslogs för att lösa de problem som användarna möter. Denna studie fokuserade på att utvärdera användarupplevelsen hos de anställda medan de hämtade önskad information om rutinerna när de använde både instrumentpanelen och Excel-kalkylblad. För att undersöka arbetetsstrukturen och de problem som de anställda upplever så genomfördes intervjuer. Resultatet analyserades och ett resultat i forma av ett informationssystem (instrumentpanelen) föreslogs och utvecklades med realtidsdata. Med samordning av de anställda genomfördes användbarhetstester och deras återkoppling registrerades för framtida arbete. Enligt studieresultaten kan effektiviteten hos de anställda ökas och beslutsfattande kan förbättras med hjälp av ett informationssystem. Användarupplevelsen kan också förbättras genom bättre tekniker för hämtning av data. Den interaktiva visualiseringen av instrumentpanelen lockade användarna och användes effektivt för att ge information om rutiner som ska följas.
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Obi, Marcel C. "Development and Validation of a Scale for Measuring e-Government User Satisfaction." NSUWorks, 2009. http://nsuworks.nova.edu/gscis_etd/264.
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As the number of electronic services provided by governments to their citizens has increased, so has the need for understanding whether citizens are satisfied with these services. A literature review indicated that, in the United States alone, several government entities, including federal, state, and local governments, have invested large amounts of resources to develop or introduce electronic government (e-Government) to their citizens. However, very little attention has been paid to developing a standard scale for measuring the intended benefits or for justifying the invested resources. The focus of this study was the development and validation of a scale for measuring e-government user satisfaction (EGUS) to close this gap. Through review of extant literature, a 9-dimensional structure with 86 items was extracted to measure EGUS. Then, a preliminary content validity study was conducted with a 10-member panel of experts, who examined the items to ensure the psychometric properties of the scale were theoretically and empirically sound. This process resulted in elimination of 14 items. The main study was conducted based on the remaining 72 items. Data was collected from 225 e-government users via Web-based survey to assess their experience with online engagement. The items were further subjected to iterative test of dimensionality, construct validity, and internal consistency reliability. The end result was a 9-dimensional scale structure with 67 items.
The results of the study indicated that all nine dimensions of EGUS (information content, ease of use, accessibility, timeliness, efficiency, security, privacy, interactivity, and format) were significant in influencing e-government user satisfaction. Thus, this research model has resulted in the basis for development of a new instrument to measure user satisfaction within e-government domain and the groundwork for expanding research on user satisfaction studies within the e-government paradigm. Within the body of knowledge, it has revealed insight into the importance of end user satisfaction in electronic government research. The instrument could be used in various fields of study. E-government practitioners and citizens could also use it for better understanding of the benefits of e-government services over traditional government services. Government personnel could use it to justify investments.
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Övelius, Erika. "Dynamics, Information System and Maintenance : drivers for change at the level of the individual." Thesis, University of Skövde, Department of Computer Science, 1999. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-394.
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A lot of factors inside and outside the organisation forces the organisation and the indiviudals working in the organisation to change. The aim of this work is to get an understanding of the relationship between change, maintenance and information. To reach that aim the objectives are to examine what kind of external and internal factors there are that causes change in user demands and to see how these new demands can be handled inside the organisation. It becomes harder and harder to adapt to changes due to the fast acceleration of change, therefore it is important to become aware of what kind of factors result in new user demands and needs. Nine change factors on the organisational level were identified based on a literature study. An analysis of the differences between the organisation and the indiviudal (organism) level established a gorund for identifying factors on the level of the individual.
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Lardner, Stephen M. "The evolution of user satisfaction as a surrogate measure of information system effectiveness." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28193.
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Humphries, Christopher. "User-centred security event visualisation." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S086/document.
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Il est aujourd'hui de plus en plus difficile de gérer les énormes quantités de données générées dans le cadre de la sécurité des systèmes. Les outils de visualisation sont une piste pour faire face à ce défi. Ils représentent de manière synthétique et souvent esthétique de grandes quantités de données et d'événements de sécurité pour en faciliter la compréhension et la manipulation. Dans ce document, nous présentons tout d'abord une classification des outils de visualisation pour la sécurité en fonction de leurs objectifs respectifs. Ceux-ci peuvent être de trois ordres : monitoring (c'est à dire suivi en temps réel des événements pour identifier au plus tôt les attaques alors qu'elles se déroulent), exploration (parcours et manipulation a posteriori d'une quantité importante de données pour découvrir les événements importants) ou reporting (représentation a posteriori d'informations déjà connues de manière claire et synthétique pour en faciliter la communication et la transmission). Ensuite, nous présentons ELVis, un outil capable de représenter de manière cohérente des évènements de sécurité issus de sources variées. ELVis propose automatiquement des représentations appropriées en fonction du type des données (temps, adresse IP, port, volume de données, etc.). De plus, ELVis peut être étendu pour accepter de nouvelles sources de données. Enfin, nous présentons CORGI, une extension d'ELVIs permettant de manipuler simultanément plusieurs sources de données pour les corréler. A l'aide de CORGI, il est possible de filtrer les évènements de sécurité provenant d'une source de données en fonction de critères résultant de l'analyse des évènements de sécurité d'une autre source de données, facilitant ainsi le suivi des évènements sur le système d'information en cours d'analyseManaging the vast quantities of data generated in the context of information system security becomes more difficult every day. Visualisation tools are a solution to help face this challenge. They represent large quantities of data in a synthetic and often aesthetic way to help understand and manipulate them. In this document, we first present a classification of security visualisation tools according to each of their objectives. These can be one of three: monitoring (following events in real time to identify attacks as early as possible), analysis (the exploration and manipulation a posteriori of a an important quantity of data to discover important events) or reporting (representation a posteriori of known information in a clear and synthetic fashion to help communication and transmission). We then present ELVis, a tool capable of representing security events from various sources coherently. ELVis automatically proposes appropriate representations in function of the type of information (time, IP address, port, data volume, etc.). In addition, ELVis can be extended to accept new sources of data. Lastly, we present CORGI, an successor to ELVIS which allows the simultaneous manipulation of multiple sources of data to correlate them. With the help of CORGI, it is possible to filter security events from a datasource by multiple criteria, which facilitates following events on the currently analysed information systems
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Kim, Seonho. "Visualizing Users, User Communities, and Usage Trends in Complex Information Systems Using Implicit Rating Data." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/27286.
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Research on personalization, including recommender systems, focuses on applications such as in online shopping malls and simple information systems. These systems consider user profile and item information obtained from data explicitly entered by users. There it is possible to classify items involved and to personalize based on a direct mapping from user or user group to item or item group. However, in complex, dynamic, and professional information systems, such as digital libraries, additional capabilities are needed to achieve personalization to support their distinctive features: large numbers of digital objects, dynamic updates, sparse rating data, biased rating data on specific items, and challenges in getting explicit rating data from users. For this reason, more research on implicit rating data is recommended, because it is easy to obtain, suffers less from terminology issues, is more informative, and contains more user-centered information. In previous reports on my doctoral work, I discussed collecting, storing, processing, and utilizing implicit rating data of digital libraries for analysis and decision support. This dissertation presents a visualization tool, VUDM (Visual User-model Data Mining tool), utilizing implicit rating data, to demonstrate the effectiveness of implicit rating data in characterizing users, user communities, and usage trends of digital libraries. The results of user studies, performed both with typical end-users and with library experts, to test the usefulness of VUDM, support that implicit rating data is useful and can be utilized for digital library analysis software, so that both end users and experts can benefit.Ph. D.
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Rodriguez, Suzanne Marie. "Training users of a flexible decision support system: The effects of training content and user ability." Case Western Reserve University School of Graduate Studies / OhioLINK, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=case1059483169.
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Ocar, Ugurcan, and Naveen Samant Aggarwal. "An adapted Information System Success Model for Software-as-a-Service Solutions : Management Support, User Involvement, and Trust as Antecedents to Information Systems Success." Thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Informatik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-44570.
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Background: The companies of Industry 4.0 need to invest in digitalising their organizations as software is growing into a decisive manufacturing determinant. Especially in the SaaS business and the transformation to Industry 4.0, there are many small companies that are driving the transformation while competing for market share. In this context, the SaaS providers need to develop an understanding of the success of their solution. While the Information Systems Success Model by DeLone and McLean has found some application in the context of SaaS solutions, there is no specific model for the SaaS industry. Furthermore, there is the underlying need to understand which antecedents cause or influence the success of an information system. Purpose: The purpose of this study is to develop an Information Systems Success Model for Software-as-a-Service companies and to understand the antecedents and their relationships to the success of SaaS solutions from the SaaS provider’s point of view. Method: This study followed an abductive approach due to the possibility to simultaneously review existing theory and examine the empirical findings in the analysis. Furthermore, an exploratory study was conducted utilizing both quantitative and qualitative methods. The quantitative data was gathered through a standardized online survey of the customers of a SaaS provider and then analysed using Structural Equation Modelling. The qualitative data was collected through semi-structured interviews with SaaS providers, SaaS customers, and researchers of related fields and then analysed using a hermeneutic data analysis approach. The results of both methods were then triangulated to create the adapted model. Conclusion: Three antecedents of information systems success in the SaaS context were identified as part of this study. The antecedents are Management Support, User Involvement, and Trust. These antecedents can be used as levers by the SaaS provider to steer the success of their solution. Furthermore, the antecedents are integrated in a comprehensive Information Systems Success Model to measure and understand the success of SaaS solutions from the SaaS provider’s point of view.
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Scott, Jr Ernest. "FACTORS INFLUENCING USER-LEVEL SUCCESS IN POLICE INFORMATIONSHARING: AN EXAMINATION OF FLORIDA'S FINDER SYSTEM." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3073.
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An important post-9/11 objective has been to connect law enforcement agencies so they can share information that is routinely collected by police. This low-level information, gathered from sources such as traffic tickets, calls for service, incident reports and field contacts, is not widely shared but might account for as much as 97% of the data held in police records systems. U.S. policy and law assume that access to this information advances crime control and counterterrorism efforts. The scarcity of functioning systems has limited research opportunities to test this assumption or offer guidance to police leaders considering investments in information sharing. However, this study had access to FINDER, a Florida system that shares low-level data among 121 police agencies. The user-level value of FINDER was empirically examined using Goodhue's (1995) Task-Technology Fit framework. Objective system data from 1,352 users, user-reported "successes," and a survey of 402 active users helped define parameters of user-level success. Of the users surveyed, 68% reported arrests or case clearances, 71% reported improved performance, and 82% reported improved efficiency attributed to FINDER. Regression models identified system use, task-fit, and user characteristic measures that predicted changes in users' individual performance. A key finding was that FINDER affirmed the importance of sharing low-level police data, and successful outcomes were related to its ease of use and access to user-specified datasets. Also, users employed a variety of information-seeking techniques that were related to their task assignments. Improved understanding of user-defined success and system use techniques can inform the design and functionality of information sharing systems. Further, this study contributes to addressing the critical requirement for developing information sharing system metrics.Ph.D.
Department of Criminal Justice and Legal Studies
Health and Public Affairs
Public Affairs: Ph.D.
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Newell, Sima C. "Improved Internet information retrieval through the use of user models, filtering agents and a knowledge-based system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0002/MQ37277.pdf.
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Hitchins, Timothy Michael. "Assessing PPGIS Usability and its Relationship to Spatial Data Production: a Case Study." PDXScholar, 2018. https://pdxscholar.library.pdx.edu/open_access_etds/4521.
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Modern Geoweb-enabled PPGIS methodologies incorporate interactive map applications as the main driver for public engagement and data collection. However, little research explores exactly how the public interact with these applications to produce spatial data, a fact that contributes to criticisms of final data quality. Usability evaluation offers a solution for developing better PPGIS data production systems by identifying problems in the application interface for which the public engage. Drawing on a case study example of a PPGIS application developed to collect socio-spatial data from members of a random public, this paper addresses usability in a three-stage approach. First, controlled experimentation methods capture performance, preference, and data production metrics. Second, visual and statistical analysis of the captured usability data identify problems in the interface. Results indicate that users learned, became efficient, and were generally satisfied with the application, but also committed errors that may have affected data quality. Third, a solution-oriented critique of the application interface suggests new design options to mitigate future problems in similar applications. The paper ends by providing a conceptual framework for usability as it relates to PPGIS data production and incorporates it into an informed discussion on data quality and future research needs for maintaining the viability of PPGIS projects.
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Hinze, Nicolas Karlsson. "Integration of the Transportation Systems Analysis Model for the Small Aircraft Transportation System." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/43911.
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Standalone computer modules for county to county travel demand forecasting have been
integrated. The Trip Generation, Trip Distribution and Mode Choice modules have been unified
under one Graphical User Interface (GUI). The outputs are automatically mapped using
Geographic Information Systems (GIS) technology to allow immediate and spatial analysis. The
integrated model allows for faster running times and quicker analysis of the results. The ability to
calculate travel time savings for travelers was also included to the final model. The modeling
framework developed is known as the Transportation Systems Analysis Model (TSAM).Master of Science
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Mukudu, Alfred M. "User evaluations of IT in healthcare : a case study of perceived fit of a health management information system." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11613.
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Includes bibliographical references (p. 70-74).Mobile systems are increasingly growing in developing countries and have been a key interest for organisations looking to make scalable solutions for the developing world-context. For the HIV/AIDS healthcare sector, this interest has seen great investment in healthcare systems augmented by mobile technologies. One such system is the EMIT-system created by Cell-Life, a Cape Town based organisation that creates solutions for managing HIV and TB. The EMIT system is a mobile and web-based system used for health management information collection that was implemented for a number of community organisations engaged in HIV related awareness activities around the country. This research study collected the system’s users’ opinions on how appropriate they felt the EMIT system was for their task needs.
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Constantino, Marco. "Financial information extraction using pre-defined and user-definable templates in the Lolita system." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/5030/.
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Financial operators have today access to an extremely large amount of data, both quantitative and qualitative, real-time or historical and can use this information to support their decision-making process. Quantitative data are largely processed by automatic computer programs, often based on artificial intelligence techniques, that produce quantitative analysis, such as historical price analysis or technical analysis of price behaviour. Differently, little progress has been made in the processing of qualitative data, which mainly consists of financial news articles from financial newspapers or on-line news providers. As a result the financial market players are overloaded with qualitative information which is potentially extremely useful but, due to the lack of time, is often ignored. The goal of this work is to reduce the qualitative data-overload of the financial operators. The research involves the identification of the information in the source financial articles which is relevant for the financial operators' investment decision making process and to implement the associated templates in the LOLITA system. The system should process a large number of source articles and extract specific templates according to the relevant information located in the source articles. The project also involves the design and implementation in LOLITA of a user- definable template interface for allowing the users to easily design new templates using sentences in natural language. This allows user-defined information extraction from source texts. This differs from most of existing information extraction systems which require the developers to code the templates directly in the system. The results of the research have shown that the system performed well in the extraction of financial templates from source articles which would allow the financial operator to reduce his qualitative data-overload. The results have also shown that the user-definable template interface is a viable approach to user-defined information extraction. A trade-off has been identified between the ease of use of the user-definable template interface and the loss of performance compared to hand- coded templates.
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Booth, James Runyan. "Evaluation of user information satisfaction of the Automated Quality of Care Evaluation Support System." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28189.
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Nordin, Alexandra. "Improving an Information Retrieval System by Using Machine Learning to Improve User Relevance Feedback." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-185184.
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The aim of this thesis work is to improve the performance of an already existing information retrieval system that uses relevance feedback for performing query expansion. It is a constant goal to improve this system because the docu- ments that are retrieved are a base for various data analysis tasks. It is therefore important that the precision and re- call are high. A user can choose to give relevance feedback when executing a query, meaning the user can mark docu- ments in the search result as relevant or irrelevant and redo the search based on this feedback. The original query will then be expanded based on the user’s feedback. The ap- proach presented in this thesis uses the documents marked as relevant or irrelevant to train a classifier that can classify unknown documents from the search result as either rele- vant, irrelevant or unknown. The aim is to classify unknown documents and add them to the set of feedback documents that are used for the query expansion. The assumption that this thesis is based on is that the more feedback a user gives, the better the query expansion will perform. The system developed in this thesis is evaluated for the English language. The results in this thesis show that integrating the classifier in the existing system improved the perfor- mance in three out of four use cases. The existing system already has a good performance, but small improvements are important. It would therefore be beneficial to integrate it into the existing system.I detta examensarbetet så är målet att förbättra ett exi- sterande informationssökningssystem som använder sig av relevansåterkoppling för att utföra sökfrågeexpansion. Det finns en konstant efterfrågan att förbättra prestandan av detta system då de dokument som returneras används för olika dataanalysuppgifter. Därför är det viktigt att både precision och täckning är så högt som möjligt. En använ- dare kan välja att ge relevansåterkoppling, vilket betyder att användaren markerar dokument som är relevanta och irrelevanta, vilket sedan används för att utföra sökfråge- expansion. Den initiala sökfrågan expanderas utifrån in- formation från relevansåterkopplingen. Tillvägagångssättet som presenteras i detta arbete använder de markerade do- kumenten för att träna en maskininlärningsmodell som kan klassificera oklassade document som relevanta, irrelevanat eller okända. Målet är att klassificera okända dokument och sedan lägga till dem till uppsättningen av relevansåterkopp- lingsdokument som användaren har markerat. Antagandet som denna metod baseras på är att ju mer relevansåter- koppling som ges, desto bättre sökfrågeexpansion kan sy- stemet utföra. Systemet som utvecklades i detta examens- arbete är byggt för och evaluerat mot data som äs skrivet på engelska. Resultaten i detta arbete visar att denna metod förbättrade resultaten i tre utav fyra testfall. Prestandan för det existerande systemet är redan på en hög nivå, men små förbättringar är viktiga. Det skulle vara en fördel att integrera detta i det existerande systemet.
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Chang, Kai-Ling, and 張凱玲. "Investigating User Satisfaction ofNursing Information System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/29798651731003309333.
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碩士國立中正大學
資訊管理學系暨研究所
100
With the development of information technology, the organizations in the nursing field start to use computer system for nursing practice, Therefore, in order to increase work performance, design a satisfactory system has become an important issue among medical institutions. This study base on D&M IS success model for literature review, summing up the variables of system and information quality. Base on the result to conduct an interview, in order to identify suitable measurements. This study adopt system dimension (system and information quality) and user dimension (perceived usefulness, ease of use and computer self-efficacy) to gain an insight into the factors affecting user satisfaction of Nursing Information System. The questionnaire survey method was adopted, with the Chiayi area as the data collection region. A total of 274 questionnaire copies were collected. The Structural Equation Modeling, SEM was selected as the main method to verify the causal relationship between the variables in the research model. The results show that system quality and information quality have a significantly positive impact on both perceive usefulness and ease of use. Computer self-efficacy also has positive impact on perceived ease of use and perceived ease of use has positive impact on perceive usefulness. In addition, perceive usefulness and ease of use have great impact on user satisfaction. Overall, the research results are considered inspirational both in theory and in practice.
50
Fan, Ming-Chung, and 范明忠. "Usability-Based Information System User Interface Design." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/75489814336010557633.
Full textAbstract:
碩士國防大學中正理工學院
資訊科學研究所
95
Most of the design of current information system is based on the technology ability instead of human usability. Consistent information system is easy to learn and easy to use. Thus, the consistency of user interface design is an important issue for information system design. Usability evaluation indicated that the system developed by the proposed method increases user efficiency in information system as well as user satisfaction. The concept of user-centered design in Thinking Aloud Method is proved to be suitable for evaluating inforamtion system. The result shows that consistency and navigation of information system interface is related to information system interface usability. However, functionality of information system is not related to information system usability. Thus, we suggest that the web site designer of information system should improve the consistency of the information system interface. By doing so, user satisfaction will be improved. We also find that navigation is related to efficiency, effectiveness, and user satisfaction. So we suggest that the navigation function of information system is also an important concern.