Modelling levels for actor activity
The general framework for modelling actor activity is presented in (Brézillon, to appear), we give here only few characteristics. There are four modelling levels are (1) the conceptual level where ideas are stated on the basis of concepts of interest for modelling an activity, (2) the operational level where ideas are formalized in a mental model, thanks to a relevant context-based formalism of representation, (3) the implementation level where mental representation of the actor is expressed in a contextual graph from where is extracted the mental model, as a path and (4) the environment level where the model, first, interacts with the activity environment (and mainly actor as source of context), and, second, from where contextual elements are instantiated when needed from the four context sources. In this framework, the activity model exists jointly at the operational level (actor’s understanding of the activity as a mental model) and at the implementation level (a sharable understanding of the activity development in its environment as a path in a contextual graph), while the fourth level concerns environment. Operational and implementation levels represent two views on actor’s experience (as mental representation and as contextual graph) on the development of a mental model from the mental representation .
You can explore the key features of a modelling level by clicking on name of that level Identified in yellow
