Relational Model Driven Application Design

Due to the competitive orientation of the German public transport market the process of managing contracts between the representatives of public administration and the typically private transport providers becomes increasingly complex. The use of an integrated information system that supports the administration of the complete life cycle of such a contract improves the quality of the transport supply significantly. The electronic contract management system eVMS was originally built for that purpose in a project for a public transport organization [Fr05]. Meanwhile eVMS evolved into an off-the-shelf product and is now used by three of the largest public transportation organizations in Germany.