A method for developing Reference Enterprise Architectures Industrial change forces enterprises to constantly adjust their organizational structures in order to stay competitive. In this regard research acknowledges the potential of Reference Enterprise Architectures (REA). This thesis proposes REAM a method for developing REAs. After contrasting organizations needs with approaches available in the current knowledge base this work identifies the absence of method support for REA development. Proposing REAM the author aims to close this research gap and evaluates the methods utility by applying REAM in different naturalistic settings.<eng>