In this paper, the handling of different product family generations is methodically supported. In order to prepare low internal complexity for future product variants, Design for Variety and modularisation approaches are used to build a multiple domain matrix framework to structure a product family initially. By introducing Change-and Delta-Matrices, the planning as well as the tracing of changes between two different product family generations can be displayed. For supporting the development process of complex systems, the approach of Model-Based Systems Engineering is used. The activities are assisted by means of graph analysis software to obtain change propagation paths and SysML to ensure data consistency and track changes respectively.
