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With computers embedded almost everywhere, in domestic, industrial, and medical appliances and devices, computing is becoming increasingly pervasive. Services in pervasive systems can be combined and coordinated through user-defined scripts called assemblies, a light-weight and understandable way for end users to adapt services to fit their specific needs.Previous languages for assembly scripts focus on programming by example, using very simple scripting languages. We propose the addition of abstraction mechanisms to support multiple instances of conversations, connections and assembly configurations.The proposed extensions are motivated by example scenarios requiring the added power of expression. A language, compiler and run-time environment have been implemented and experimentally verified in a service robotics application. |
