TOWARDS A MULTIMODELING APPROACH OF DYNAMIC SYSTEMS FOR DIAGNOSIS
Marc Le Goc, Emilie Masse · 2007
Keywords: Modeling, Model Based Diagnosis, Dynamic Systems, Conceptual Model Abstract: This paper presents the basis of a multimodeling methodology that uses a CommonKADS conceptual model to interpret the diagnosis knowledge with the aim of representing the system with three models: a structural model describing the relations between the components of the system, a functional model describing the relations between the values the variables of the system can take (i.e. the functions) and a behavioural model describing the states of the system and the discrete events firing the state transitions. The relation between these models is made with the notion of variable: a variable used in a function of the functional model is associated with an element of the structural model and a discrete event is defined as the affectation of a value to a variable. This methodology is presented in this paper with a toy but pedagogic problem: the technical diagnosis of a car. The motivating idea is that using the same level of abstraction that the expert can facilitate the problem solving reasoning.