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Academic literature on the topic 'Microsoft Windows server (Système d'exploitation des ordinateurs)'
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Dissertations / Theses on the topic "Microsoft Windows server (Système d'exploitation des ordinateurs)"
Boukhobza, Jalil. "Etude et analyse des performances et simulation des accès aux fichiers sur PC." Versailles-St Quentin en Yvelines, 2004. http://www.theses.fr/2004VERS0019.
Full textThe evolution of storage subsystems and more particularly disks was considerable this last decade. However, the performance gap between secondary storage and processor is still increasing. It is therefore crucial to well choose the storage subsystem and to know how to use it in an optimal way. In order to resolve this problem, a complete understanding of the software and hardware behaviours of storage systems as well as the interactions between the different modules of the I/O system is required. We are interested in this thesis in the benchmarking, the performance analysis and the simulation of the storage architecture on PCs. We are particularly studying the I/O system under Windows and the file access mechanisms. The use of some parameters in the file opening and creation function CreateFile under Windows decides on the way files are accessed. The choice of a read ahead algorithm, a lazy write strategy, the system data block size and other parameters is done by the system and depends on those function parameters. It is thus very important to understand the impact of those choices on the I/O performance of the system that are of course relative to the injected workload. The realized work consists of finding at first an efficient way to measure the specific Windows storage system performance depending on the parameters like those specified in the CreateFile function and request sizes. We have noticed very important performance fluctuations relative to the file access strategy used. We have then developed a methodology to analyse Windows storage systems. We have identified thanks to this methodology different parameters that helped us to understand the performance fluctuations we obtained. It is the response time analysis step that allowed this understanding. We observed that response times are periodic when the accessed blocks were stored sequentially on the disk, that was the starting point of our analysis. Once the performance study and analysis done, a behavioral simulator of the Windows storage system has been developed. It allows for instance the performance evaluation of a given workload on defined storage architecture for a user to decide of the most effective access strategy to adopt before implementing his application
Masood, Tehreem. "Dynamic Performance-based Decision Support for Service Reusability." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE2095/document.
Full textReuse of services in supporting new business processes, in addition to alignment of IT with business functions, is a key motivation in using Service-Oriented Architecture (SOA) for developing business solutions. In a service-oriented architecture, it is important to smooth the selection, configuration and composition of existing services to deal with the runtime changes or the evolution of End User requirements. In contrast to other traditional software systems, the dynamic behavior of service based systems requires up-to-date quality of service (QoS) information for its proper management in the different stages of the lifecycle. Organizations need to know the performance of Web services and business processes to maintain their sustainability for reuse of services. The three key benefits of service reuse are improving agility of solutions by quickly assembling new business processes from existing services to meet changing marketplace needs, reducing cost by not developing new services for enabling similar business functions across multiple business processes, but also spanning service deployment and management in runtime environments throughout the SOA lifecycle. However currently, there are many challenges related to the sustainability and governance of service behavior during its lifecycle. Among those challenges, one can mention level of performance, persistence of the requirements and adaptability of the service. Moreover, there are some limitations of monitoring tools. They lack of anticipation in problem detection, and they are passive and neither reactive nor predictive. This thesis focuses on providing assessment and recommendations for performance and governance of information systems for suggesting service reuse during its evolution. The aim is to maintain sustainability, robustness, adaptability, reusability and evolvability of information systems For this purpose, we evaluate the performance of service oriented architecture. There are several existing monitoring solutions designed to support a specific layer of SOA. Particularly, BAM is a business activity monitoring tool for monitoring the flow of data for business processes. However, BAM monitoring do not provide the performance evaluation for recommending services and processes to reuse. There are very few approaches that support monitoring of SOA layers together. Furthermore, the solutions are partially dynamic with limited decision support. Therefore, we propose performance based decision support for service oriented architecture. It consists of four layers as specification, data management, data mining and decision layers. The specification layer identifies the requirements from the End User and process through the proposed ontology. The data layer analyzes technical indicators that are compliant to the latest quality standard, ISO 25010. Quality characteristics are related to performance efficiency, reliability and reusability. The data mining layer generates specific decisions based on service instances by applying the machine learning algorithms. It uses the proposed ontological concepts and semantic inference rules of service, business process, server and integration layers. The data mining layer returns back to ontologies with these specific decisions where more refined rules have been generated from new ontological concepts. The decision layer processes these results and generates a global decision in terms of recommendations. It provides multi-viewpoints decision to reuse existing services or suggesting their composition. To motivate the proposition of this approach, we illustrate the implementation of the proposed algorithms for all the four layers by a business process use case and data set of public repository of shared services. The output of our system is recommendation for reuse of atomic service, composite service and resource allocation provisioning. We ensure the sustainability, adaptability
Benkoussas, Chahinez. "Approches non supervisées pour la recommandation de lectures et la mise en relation automatique de contenus au sein d'une bibliothèque numérique." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4379/document.
Full textThis thesis deals with the field of information retrieval and the recommendation of reading. It has for objects:— The creation of new approach of document retrieval and recommendation using techniques of combination of results, aggregation of social data and reformulation of queries;— The creation of an approach of recommendation using methods of information retrieval and graph theories.Two collections of documents were used. First one is a collection which is provided by CLEF (Social Book Search - SBS) and the second from the platforms of electronic sources in Humanities and Social Sciences OpenEdition.org (Revues.org). The modelling of the documents of every collection is based on two types of relations:— For the first collection (SBS), documents are connected with similarity calculated by Amazon which is based on several factors (purchases of the users, the comments, the votes, products bought together, etc.);— For the second collection (OpenEdition), documents are connected with relations of citations, extracted from bibliographical references.We show that the proposed approaches bring in most of the cases gain in the performances of research and recommendation. The manuscript is structured in two parts. The first part "state of the art" includes a general introduction, a state of the art of informationretrieval and recommender systems. The second part "contributions" includes a chapter on the detection of reviews of books in Revues.org; a chapter on the methods of IR used on complex queries written in natural language and last chapter which handles the proposed approach of recommendation which is based on graph
Books on the topic "Microsoft Windows server (Système d'exploitation des ordinateurs)"
Saury, Jean-Georges. Windows Server 2003, Windows Server 2008. Paris: Micro application, 2007.
Find full textInstalling and configuring Windows Server ® 2012: Training guide. New Delhi, India: PHI Learning, 2013.
Find full textNorberg, Stefan. Securing Windows NT/2000 servers for the internet. Sebastopol, Calif: O'Reilly, 2001.
Find full textWindows NT 4 Server: Secrets d'experts. Paris: Simon & Schuster Macmillan (France), 1997.
Find full textChristine, Roye, ed. MCSE examen blanc: Microsoft Windows NT server 4.0 : examen 70-067. Les Ullis, France: Microsoft Press, 1999.
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