Companies today interact in an increasingly competitive environment and seek to leverage the potentials of IT for generating new business models and for changing existing ones. For these business models, companies have to align the respective business and IT architectures. This task can be supported by using enterprise architecture management. In this paper, we first analyze the potentials for integrating enterprise architecture (management) and business model (management). Second, the components of different approaches for describing business models are compared to each other. Third, we present a concept for integrating business models into enterprise architectures. Fourth, we outline an integration of business model management and enterprise architecture management processes.