Interoperability is a key feature in today's IT-Environments. To achieve interoperability, the user's actions when connecting two different systems have to be minimized. For this reason, several service based systems have been developed. However, as far as the current implementations in the field are concerned, all of them need connectors and gateways that are individually developed to connect heterogeneous components. In this contribution we develop a description scheme for services that is split into a semantic and a structural part. This enables a semi-automatic generation of such adaptors and establishes interoperability. The description scheme is based on properties which are defined in decentralized repositories. An example implementation for the adaptor-development process is shown.