The lack and need of prescriptive design knowledge in enterprise architectures is well documented. While knowledge of various disciplines that are part of enterprise architectures is captured in principles or patterns, no integration of this knowledge is available. In order to work towards such knowledge documentation, we propose an inductive documentation of domain-specific patterns. These patterns can be observed by analyzing different design alternatives, and evaluating them against

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... ve criteria, such as evolvability. In this paper, we present a method to systematically analyze and document design alternatives in a domain, building on scenario-based architecture evaluation methods. A case study is presented in which the proposed method is applied. Based on the findings of this method, domain-specific enterprise architecture patterns can be proposed in future research.