Abstract. The purpose of a computerized information system is to improve dataintensive business processes in an organization. The development of such systems itself is data-intensive. Tools have been developed to support the development process, among others repository systems which serve as the common database used by the development team. This paper reports on application experience with the ConceptBase system which we developed over the last 12 years. Eight applications are presented in more detail to show which properties the users demanded and how different applications used the base functionalities of the system in a different way. In summary, extensibility, performance, and advanced query facilities turned out to be most important.
Manfred A. Jeusfeld, Matthias Jarke, Martin Staudt