Project : projet WINDMash Name : Acronym : Description :WINDMash is a tool that we develop in order to assess our resarch works in the domain of Model based Courseware Engeneering. WindMash promotes a VPL allowing designers to specify interactions between a user and a system in the field of educational Web-based geographic applications. This VPL has been integrated in a graphical design framework allowing designers to immediately assess their specification. Experimentations aiming at evaluating the strengths and the weaknesses of this VPL are conducted. Keywords : Website : Date at the beginning : Date of the end : Person and institution in charge : Financing : - collectivitéPartnership with organisations : - Equipe T2I du LIUPPA