An interface theory for service-oriented design

We revisit the notions of interface and component algebra proposed by de Alfaro and Henzinger in [7] for component-based design and put forward elements of a corresponding interface theory for service-oriented design. We view services as a layer that can be added over a component infrastructure and propose a notion of service interface for a component algebra that is an asynchronous version of relational nets adapted to SCA (the Service Component Architecture developed by the Open Service-Oriented Architecture collaboration). © 2011 Springer-Verlag