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The Unified Service Description Language (USDL) is used to describe almost any kind of services with more than just technical data. Especially price plans are important for a business-oriented Internet of Services. Find more information about it on www.internet-of-services.com.

It was developed in THESEUS TEXO and has been pushed towards standardization at the World Wide Web Consortium (W3C) as one of the project’s dissemination goals. Therefore, SAP was chairing the USDL Incubator Group (XG) for about one year now. This XG has been finished and closed effectively October 27th 2011. Time to look back upon what has been achieved.

The mission of the USDL Incubator Group was to work on the already existing proposal for USDL in three directions: investigate similar approaches and relate them to USDL, reshape the specification to align it with W3C and feedback that was collected, and prove practical relevance by creating reference test cases by various partners. During the XG’s lifetime, the group shifted the focus away from working on the language itself in order to better concentrate on use cases and adoption. The Incubator Group Report therefore contains a comprehensive overview and assessment of other languages, specifications and approaches that were considered to be related to USDL. The report also contains a description of our reference test cases and their implementations, a list of issues and ideas of improvement for the next version of USDL, and a statement from some partners about USDL.

The XG attracted participants from various companies, research institutes, and also people that were personally interested in that topic: colleagues from HP, ca technologies, DERI Galway, Fraunhofer, Telefónica de España, Univrsidad Politécnica de Madrid, University of Helsinki, The Open University, and others.

Overall, it can be concluded that the XG was a success and networks were established that we would not have reached without the XG. We gathered feedback for improvement and created public interest for USDL. Therefore, the XG recommends to follow up on USDL by creating a W3C Working Group to advance it into a real standard.

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