This document specifies constructs for modelling and specifying product-related service systems in general business terms, recognising the service environment and the product lifecycle. The constructs and their meta-model are consistent with the Model Driven Service Engineering Architecture (MDSEA). They are intended for use by business users to address their business concerns and decision-making, and by systems engineers and IT/researchers using a model-driven engineering approach in the design, development and deployment of service systems in Virtual Manufacturing Enterprises (VMEs), business ecosystems and other application areas.