Abstract
This paper presents and evaluates an approach that can be used to support modifications both in an organization (reengineering) and especially, in its supporting information systems. The approach is a blend of the (group) problem solving approach from Delft University of Technology with work involving group decision support in the context of information system design coming from the University of Minnesota. A study performed at the Amsterdam Municipal Police Force is used to illustrate and evaluate this approach. Results from this experience show the effectiveness and efficiency of the approach and point toward directions for enhancements.