1. Principles of Service Design;Thomas,2007
2. F. Curbera, W. Nagy, S. Weerawana, Web service: why and how?, in: The OOPSLA 2001, Workshop on Object-Oriented Services, 2001.
3. What is web 2.0: design patterns and business models for the next generation of software;O’Reilly;Communications & Strategies,2007
4. UN/CEFACT, ebxml business process specification schema, version 2.0.4, 2006.
5. W3C, web services choreography description language version 1.0, 2005.