A framework to support multiple views in geometric constraint-based models

We develop a framework to support geometric constraint-based design systems with multiple views for concurrent engineering. The framework is based on a conceptual architecture with a master view and several client views with a two-way flow information between the master and client views. The tools in the framework are used to open a new application´s view or when one of the applications changes its view by editing it and the master view and the other views must be updated to maintain consistency. A case study illustrates how the tools in the framework work.