An Enterprise Architecture (EA) embraces an organization technical infrastructure, applications, business capabilities, and relationships among them. Evolutionary design is a common characteristic for such an EA. An EA can be considered as a complex system of systems, whereas the actual efforts for its maintainability and evolution have a high influence on the enterprise s capability to quickly respond to market changes. A common means to analyze an EA are visualizations. However, research on

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... sual means for analysis of EA evolutions is scarce. In this paper we outline visual means to analyze the evolution of EAs and motivate research on this topic by outlining related challenges.