This chapter presents an infrastructure approach for virtual enterprises developed by the consortium of the European research project ComVantage and discusses its impact with respect to the mobile maintenance domain. Our approach focuses on the core aspects of interoperability which are data interoperability and process interoperability. Regarding the interorganisational access to enterprise data, we propose a semantic abstraction layer that is completely decentralised and therefore meets the key requirement of virtuality. The execution of business processes and workflows across organisational boundaries are addressed by the unique App Orchestration Concept.