Abstract
In the recent years, the workflow system has increasingly gained considerable attention in the Information Systems community. It allows the integration of the various users to reach the objectives of the organization. The users operate their Information Systems through the User Interfaces (UI). Therefore there is a need to take into account the workflow model in the development process of the UI for an Information System. This paper has two objectives to attain. The first one is the proposition of a model driven approach to derive a plastic UIs of a Workflow Information System. The second objective lies in the use of Business Process Modelling Notation (BPMN) for the modelling of the interaction models (Task Model, Abstract User Interface, Concrete User Interface) with the aim of supplying more adapted models for a business expert who represents a main candidate in the success of the organization. It is through a case study applied to a real information system that our approach proves to be reliable.