A conceptual representation of clinical and managerial guidelines: the ATREUS workflow model

In this paper we propose a workflow conceptual model able to represent clinical and managerial activities within healthcare structures, the ATREUS model. This model uses: a) a graphical representation which models the activities and the events that activate them; b) a textual representation of information related to: a set of conditions used for the control of activity execution; the actors who undertake the activity; the resources and tools necessary for its enactment, the clinical and managerial data generated by the activity execution; c) a state diagram which allows the control of the activity execution. The model allows modularity, activity nesting and temporal flexibility using a top-down refinement of processes. This model, unlike others, makes it possible to highlight the different types of decision involved in the performance of an activity.