We present a notion of module acquired from developing an algebraic framework for service-oriented modelling. More specifically, we give an account of the notion of module that supports the composition model of the SENSORIA Reference Modelling Language (SRML). The proposed notion is independent of the logic in which properties are expressed and components are programmed. Modules in SRML are inspired in concepts proposed for Service Component Architecture (SCA) and Web Services, as well the modules that have been proposed for Algebraic Specifications, namely by H. Ehrig and F. Orejas, among others; they include interfaces for required (imported) and provided (exported) services, as well as a number of components (body) whose orchestrations e...