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Theses

Processus d’ingénierie des exigences dans un environnment à base de modèles selon les normes automobiles

Morayo Adedjouma 1
1 LISE - Laboratoire d'Ingénierie dirigée par les modèles pour les Systèmes Embarqués
DILS - Département Ingénierie Logiciels et Systèmes : DRT/LIST/DILS
Abstract : The embedded safety-critical systems industry is facing an exponential increase in the complexity and variety of systems and devices while costs, performance in terms of intelligence, features, capacities and time to market are constantly challenged. The main objective for automotive manufacturers and suppliers is now becoming the control of quality and the dependability of embedded and mechatronic systems. The existence of internationally recognized standards such as the Automotive SPICE and ISO26262 is a further constraint that must be managed to meet this objective. Nevertheless, ensuring sound management of safety and viewpoints is insufficient. It is also essential to ensure that we produce a system that is not only compliant and well-defined, but also that we produce the “right” system. Therefore, this leads to greater consideration of the requirements.In this thesis, we address the challenge of development of automotive embedded systems following the model-driven engineering paradigm that meet the user needs and the regulatory constraints of the domain and that further mastered the quality of developed product. We resolve the problem in many steps which are subsequently used jointly. In the first phase, we define a merging approach which embodies a product quality and process quality approaches regarding the ISO26262 and SPICE standards following the model-driven engineering paradigm. Then, in a certification assessment purpose, we propose a generic methodology where an HIS assessment and a functional safety audit is simultaneously performed without altering their original meanings. This commitment results into the definition of a tooled framework where we apply the SPICE assessment method to the common metamodel defined from the merging work. In a second phase, we define a metamodel for manage safety assets regarding these automotive standards at product level. This metamodel defines how the requirements and architecture of a system can be captured in such a way that they can be traceable from each other and from origin specifications documents. Finally, a model-based approach where the interaction of process and product models is managed to address requirements identified in the precedent phases is developed to support project management. The approach uses process modeling and measurement to improve the control and the monitoring of project and to reduce the cost and frequency of re-planning.The benefits of the contribution are demonstrated on an ongoing automotive pilot application, thereby validating the research work against the weaknesses identified prealably in the context.
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https://tel.archives-ouvertes.fr/tel-00724470
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Submitted on : Tuesday, August 21, 2012 - 11:22:14 AM
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Morayo Adedjouma. Processus d’ingénierie des exigences dans un environnment à base de modèles selon les normes automobiles. Other [cs.OH]. Université Paris Sud - Paris XI, 2012. English. ⟨NNT : 2012PA112131⟩. ⟨tel-00724470⟩

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