La représentation de points de vue dans le système d'aide à la décision en cancérologie KASIMIR

In this paper, we introduce the knowledge representation based on viewpoints on which relies the KASIMIR system, aimed at decision helping in oncology. The design of viewpoints is considered on both theoretical and practical levels, and takes its place in the range of work on the subject that has a rather long history in the domain of object-based knowledge representation systems. From the theoretical side, the viewpoints are considered within the distributed description logic C-OWL, that allows the explicit representation and manipulation of viewpoints. From the practical side, an operational implementation of viewpoints in C-OWL within an application in oncology shows how viewpoints are designed, and how they can be used in local and global reasoning schemes across viewpoints. MOTS-CLÉS : point de vue, contexte, ontologie, logique de descriptions, raisonnement multi point de vue, C-OWL, cancérologie.