Today business registries are regarded as means of finding services offered by a business partner. However, business registries might also serve as means of seaching inter-organizational business process definitions that are relevant in one’s own business environment. Thus, it is important to define in which environments an inter-organizational business process definition is valid. Furthermore, environment-specific adaptations of the business process definition might be registered. In this paper the business process definitions are based on UMM business collaboration models. We discuss two approaches: Firstly, the binding of a model to business environments is specified within the model itself. Secondly, the binding of a model to business environments is defined in the registry meta-data. 1 Motivation In recent years a lot of interest has been directed toward Web Services in particular and Service-oriented Architectures (SOA) in general. A SOA provides an appropriate framework for in...