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Eléments méthodologiques pour le développement des systèmes décisionnels dans un contexte de réutilisation

Abstract : The development of software facilitating decision taking is becoming more frequent, due to the growing need of reactivity and competitiveness within companies. Such software is called Decision Support Systems (DSS). However, 80% of decision making projects fail to satisfy user requirements, and 40% fail to help decision making. The recent works of methods bound to DSS define their schemes from the user requirements and the source systems. However, they can not represent all specificities of the DSS. Moreover, they rely on specific models representing only data, the dynamic aspect of DSS being largely ignored. Thus, none of these models is accepted neither by the researchers nor the practitioners. In a first time, we will propose a method which takes into account the DSS specificities, including those related to actor requirements. We will analyse the static and dynamic aspects of DSS as defined by structures specifying the requirements. Those will be represented via a model close to the multidimensional vision of the data by users. From this modelling, we will automatically choose the DSS architecture adapted to a project. This architecture relies on many kinds of decisional modules, some of which are multidimensional. Therefore, we propose a multidimensional model generalising the existing models, thus also aiming to fix the lack of an accepted standard model. In a second time, we propose a catalogue patterns which capitalize upon our development method. This catalogue helps a systematic later reuse of our method. In one part, the pattern context formalisation helps searching for such a pattern since the conditions of its usability and those upon which another pattern is required are formally specified. In a second part, the integrated documentation management into pattern representation helps improving the reliability of the systems being developed. Then, to facilitate the rapid development of DSS by reusing our patterns, we have developed a tool called eBIPAD (Electronic Business Intelligence Patterns for Analysis and Design) to manage, organize and reuse these patterns. This tool is directed to patterns administrators and to the decisional designers. We have been able to validate our proposals through consultancy missions, realized within the ID6 company which is specialized in decision taking, through a french corporate PhD grant (CIFRE).
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Submitted on : Sunday, December 26, 2010 - 1:09:52 PM
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  • HAL Id : tel-00549422, version 1



Annoni Estella. Eléments méthodologiques pour le développement des systèmes décisionnels dans un contexte de réutilisation. Informatique [cs]. Université Paul Sabatier - Toulouse III, 2007. Français. ⟨tel-00549422⟩



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