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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

De l’ingénierie des besoins à l’ingénierie des exigences : vers une démarche méthodologique d’ingénierie de systèmes complexes, de vérification et de validation appliquée à l’informatisation des PME / From needs engineering to requirements engineering : Toward amethodological approach for engineering complex systems, verification and validation applied to the computerization of SMEs

Amokrane, Nawel 27 April 2016 (has links)
Une entreprise, et particulièrement une PME ou une PMI, doit être apte à évoluer sur des secteurs d’activités souvent très concurrentiels qui évoluent rapidement, par exemple, en fonction d’une clientèle volatile et soucieuse de trouver des produits et des services moins chers et plus adaptés à ses besoins. La PME se trouve alors confrontée à des problèmes de réactivité et de flexibilité face à cette clientèle. Par effet direct, elle recherche à réduire les délais et les coûts de réalisation tout en privilégiant aussi la qualité et le degré d’innovation des biens et des services qu’elle propose. Le système d’information de cette PME est un enjeu essentiel pour mettre en œuvre cette stratégie et maximiser donc la réactivité et la flexibilité mais aussi la rentabilité et la qualité recherchées. Ce sont des qualités incontournables, garantes d’une autonomie et d’une reconnaissance dont la PME a grand besoin. Le système d’information est en effet la courroie de transmission entre le système de décision et le système productif qui génère la valeur ajoutée de la PME. Il fait le lien entre les différents acteurs de l’organisation mais aussi avec les partenaires externes de l’entreprise. Une partie de ce système d’information est de fait informatisée. Celui-ci supporte, mémorise et traite les informations nécessaires aux différents processus de décision, métier et support qui tapissent l’organisation pour servir la stratégie de l’entreprise. Les fonctionnalités, les interfaces et les données qui forment ce système informatisé sont donc cruciales à comprendre, à développer en accord avec les besoins de la PME, à améliorer au fur et à mesure de l’évolution de ces besoins. La PME est donc tentée de se lancer, seule ou accompagnée, dans des projets dits d’informatisation i.e. des projets visant le développement ou l’amélioration de son système informatisé. Nous nous intéressons ici à des projets visant à développer des applicatifs de gestion et de pilotage de la PME. La PME – prenant alors le rôle de la maîtrise d’ouvrage (MOA) – tout comme la société de services qui l’accompagne – prenant alors en charge le rôle de maîtrise d’œuvre (MOE) – doivent partager une vision commune des besoins d’informatisation. Elles sont alors appelées à mener en commun des activités d’ingénierie des besoins et des exigences (IBE). L’IBE guide et accompagne la PME pour arriver à décrire et formaliser ses besoins. Elle permet ensuite à la société de service de spécifier de manière plus formelle ces besoins sous forme d’exigences qui définissent alors les travaux de développement souhaités. L’IBE est souvent réalisée avec une assistance à maitrise d’ouvrage. Cette étape cruciale reste cependant difficile pour une PME. Elle est de plus souvent réalisée par la MOE elle-même pour faire face au manque de moyens, de temps et de compétences de la PME. Or, l’implication des collaborateurs de la PME est primordiale pour la réussite de tout projet d’informatisation, surtout si celui-ci impacte durablement le fonctionnement de la PME.Ces travaux, développés dans le cadre d’une collaboration Industrie/recherche avec la SSII RESULIS, ont consisté à développer une méthode d’IBE qui offre aux PME des concepts, des langages et des moyens de modélisation et de vérification simples mais suffisants tout en tant aisément manipulables de manière intuitive et donnant lieu à une formalisation pertinente pour la MOE. Cette méthode est basée sur le croisement et la complémentarité de principes issus de la Modélisation d’Entreprise et de l’Ingénierie Système pour l’élicitation de besoins. Des moyens de vérification et de validation semi-formels sont appliqués pour garantir certaines qualités attendues des exigences résultantes. La méthode s’intègre également au cycle de développement basé sur les modèles pour permettre a posteriori d’accélérer la production de prototypes et de rendre interopérables les langages et outils de la MOA et de la MOE. / Most enterprises, and especially SMEs, must develop their business in very competitive and rapidly changing fields. Where they have to adapt to volatile customers who want to find cheaper products and services and that are more corresponding to their needs. The SME is then confronted with problems of responsiveness and flexibility in responding to these customers. As an effect, it seeks to reduce the costs and time to market and to provide high quality and innovative goods and services. The SME’s information system is an asset on which it can rely to implement this strategy and so to maximize its responsiveness and flexibility but also to reach the sought profitability and quality. These are key qualities that guarantee autonomy and recognition, qualities that are highly needed by any SME. The Information system is indeed the drive belt of information not only inside the enterprise, between decision and operational systems proving added value of the enterprise, but also within its environment that includes its external partners. Part of this information system is computerized. It stores and processes the information needed by the different decision-making, business and support processes that serve the enterprise’s strategy. It is crucial to understand the features, interfaces and data that make up this computerized system and develop them according to the needs of SME. The SME is therefore tempted to embark, alone or accompanied, in so-called computerization projects i.e. projects for the development or improvement of its computerized system. We are interested in projects aimed at developing management applications of SMEs. The SME – then assuming the role of project owner – along with the development team – supporting the role of project management – have to share a common vision of the computerization needs. They are then called upon to carry out jointly requirements engineering (RE) activities. RE guides the SMEs to be able to describe and formalize its needs. It then allows the development team to specify more formally these needs as requirements which then define the required development work. RE is often carried out with the assistance of project owner support. This crucial step remains difficult for SMEs. It is most often performed by the development team itself to address the lack of resources, time and skills of SMEs. However, the involvement of the SME’s members is vital to the success of any computerization project, especially if it permanently affects the functioning of the enterprise.This work, developed through a collaborative with the company RESULIS, consisted in developing a requirements engineering method which offers SMEs concepts, simple languages, modeling and verification means that are easily and intuitively manipulated and provide sufficient and relevant formalization of the SME’s requirements. This method is based on principles derived from both enterprise modeling and systems engineering fields for requirements elicitation. Semi-formal verification and validation means are applied to guarantee some expected qualities of the resulting requirements. The method is also integrated in the model driven development cycle to enable a posteriori the production of prototypes and make interoperable the languages and tools used by both the SME and the development team.
12

Integrace SaaS do on premise prostředí IS podniku / Integration of SaaS into on-premise-based information systems in enterprises

Žižka, Petr January 2015 (has links)
This Master's Thesis focuses on integration of software that are provided as services (SaaS) into current on-premise information systems of enterprises. In enterprise computing, services such as SaaS are usually integrated into cloud services. In recent years, cloud services have been experiencing a dynamic growth, and, in various forms, they have been entering enterprises of different sizes and fields. At the same time, the experience show that implementation of SaaS into enterprise computing faces many challenges due to the fact that the SaaS vendors have exclusively focused on improvement of software functionality and the integration itself has completely remained out of their attention. Given that, the integration of SaaS is rather complicated or even inaccessible for many enterprises. In particular, small and medium-sized businesses are a very specific target groups and the traditional integration platforms are unaffordable for them. The goal of this thesis is to develop a methodology based on MeFIS that would cover integration of SaaS into on-premise-based information systems in small and medium enterprises. In this thesis, first, I will define the terms used in integration of IT and cloud services and describe the essential principles, tools, and technologies used. Second, I will conduct a literature review of available sources to find the best methodology for integration of SaaS, which would take into account the specific needs of small and medium enterprises. Third, I will develop a methodology based on the methodology framework MeFIS (Methodology Framework for IS/ICT Systems). At the final stage, the developed methodology will be applied in one company in the Czech Republic. The emerged integration challenges will be described and their solutions will be developed; thus, this thesis might also serve as a specific example of SaaS integration into enterprise information systems within small and medium-sized businesses.
13

ERP systémy a analýza jejich realizace ve webovém prostředí / ERP systems and web-based ERP systems

Košař, Stanislav January 2013 (has links)
This diploma thesis deals with ERP systems and web information systems such as ERP. The theoretical part describes the historical development of information systems and the inclusion of web information systems in the context of historical development. Analysis of existing ERP systems is followed by a section dealing with the current coverage of business processes by ERP systems and general recomended criteria for choosing information systems. The practical part contains a survey of perceptions of web information by organizations. The survey is conducted using questionnaires, which were interviewed randomly selected medium-sized and small organizations. The second part contains a comparison of classical information systems such as ERP with thick client with a web information system with thin client. These systems are compared using a multi-criteria analysis.
14

Výběr informačního systému / Information System Selection

Gurka, David January 2011 (has links)
This master’s thesis deals with selection of optimal information system for medium sized engineering company. Decision to implement a new ERP system is a big step forvard and the main target of this thesis is to make the best possible recommendation how to proceed in this task. Main solution is a new ERP system for this company with economic evaluation and important benefits of this system.
15

Současné možnosti řešení správy a oběhu dokumentů ve firmě / Current possible arrangements for a company's document management and circulation

Kučerová Zrálíková, Václava January 2011 (has links)
The thesis analyzes the area of enterprise content management (ECM), identifies its relation to other business applications and defines various stages of the life cycle of documents. It also describes individual components of ECM, including the technologies covering these components. A tool for managing and storing documents (DMS) in ABC company is presented in more detail in the practical part. The Exact Synergy Enterprise software demonstrates its advantages and disadvantages affecting document management and operational problems that this kind of software may carry.
16

Podpora rozhodování pomocí podnikových informačních systémů společnosti Exact Software / Decision Making Support Using Exact Software's Enterprise Information Systems

Pitka, Lukáš January 2009 (has links)
This diploma thesis deals with an information technology support of organization's decision making processes using Exact Software's enterprise information systems. The main goal of this paper is a demonstration of various Exact Software applications using real world examples from several Czech enterprises. Illustration of various benefits of integrated enterprise systems architecture is another goal of this paper. Possible benefits gained during the process of implementation of Exact Software's applications and necessary requirements that have to be fulfilled create the last goal. Risks and issues that can be encountered during the implementation process are mentioned along with benefits. To achieve these goals this diploma paper contains a lot of practical illustrations supplemented by theoretic explanation. Paper includes four parts. First part is an introduction into decision making processes in enterprises and provides a general overview of Exact Software's enterprise information systems portfolio. Another area covered by the first part is an overview of possible benefits of these systems in according to the level of organization management. Second part is dedicated to Exact Synergy Enterprise. At the beginning of this part there are outlined procedures, benefits and assumptions necessary for successful system implementation. The following text in part two contains many real world examples from the decision making point of view. Third part covers Business Intelligence application Exact Business Analytics from the standpoint of implementation guidelines, prerequisites and benefits. Subsequent subchapters contain practical examples of usage of this system. The last part is comprised from two case studies of Exact Software's systems implementation -- first one is a financial counseling company, second one is a company from the IS/ICT area. The paper as a whole represents unique material for companies that are looking for solutions on their decision making and analytical procedures problems. On the basis of this paper the reader can create an overview of current capabilities of enterprise information systems. A vast majority of presented solutions are system independent i.e. the usage of systems from Exact Software is only exemplary. Case studies of complex enterprise IS architectures in real world enterprises represents another great contribution to this diploma paper.
17

Kritické faktory implementace informačního systému kategorie ERP ve společnosti KORA-VODOSTAVING / Critical Factors of Implementation of Information Systems ERP in the Company KORA-VODOSTAVING

Konopáč, Jiří January 2015 (has links)
This thesis deals with the implementation of enterprise information system ERP in a construction company KORA-VODOSTAVING Ltd. In the first part, I briefly describe the theoretical framework and the background of the issue. The aim of the thesis is to reveal the critical factors and risks associated with the selection, implementation and operation of ERP system. The result of the thesis is not only the development of proposals to reduce the risks, but also time and economic evaluation of the project and my recommendations for the analyzed company.
18

Výběr informačního systému / Information System Selection

Krejčí, Tomáš January 2016 (has links)
My thesis contains description of the selection process of an information system for the company VAŠ hotel B & B Ltd., which runs VV hotel in Brno. The chosen information system aims to improve current processes which leads to increase the number of accommodated persons. The first part of this thesis describes theoretical background, which I implemented in analytical and practical part of this thesis. The following chapter describes the current situation. As a part of this thesis I did analysis of specified budget for the selection of the information system. The last chapter describes the selection of the information system. In this chapter I’ve specified system requirements and described the whole selection process. The end of this thesis, identifies benefits that comes with it, and this chapter also contains an economic evaluation of the entire proposal.
19

Výběr informačního systému / Information System Selection

Hanyk, Tomáš January 2016 (has links)
This diploma thesis deals with the selection of an appropriate information system which should help to make the company processes more effective. It should also save time and enable faster adaptation to new changes in the company PORTABELL. The first part describes the essential theory to get the reader acquainted with the issues, the second part is dedicated to the analysis of corporate environment and its trouble spots. The last part deals with the selection of the information system. The information system is chosen based on the predetermined criteria and requirements.
20

Kritické faktory implementace informačního systému kategorie ERP ve společnosti METAL STEEL INDUSTRY, spol. s r.o. / Critical Factors of Implementation of ERP System in the Company METAL STEEL INDUSTRY, spol. s r.o.

Ľubek, Matej January 2016 (has links)
This master thesis deals with the implementation of enterprise information system of ERP category in the company METAL STEEL INDUSTRY, spol. s.r.o. In the first part of the thesis is described the basic theoretical knowledge and information for a specific issue. The aim of this work is the detection and identification of critical factors and potential risks associated with the selection, implementation and subsequent operation of the enterprise information system. The output of this work is a time and economic evaluation of the project, creating proposals to reduce risks and create recommendations for the company.

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