Inter-organizational business processes implementations us- ing service composition approaches are being more and more used . We want to reduce the semantic gap that exists between both worlds (busi- ness processes and services) through service choreographies, a composi- tion approach that we think it is semantically close to business processes. We rely on modeling techniques as abstraction layers and view separa- tion to achieve our goal. Our start point is a web service choreography meta-model presented in three abstraction layers where each layer is di- vided in a structural and a behavioral view. The meta-model can be used in a top-down or a bottom-up approach to make a progressive transition between the business process and the service world.