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Salt Lake City, Utah, USA
July 9, 2007 to July 13, 2007
ISBN: 0-7695-2924-0
pp: 800-807
Zhongnan Shen , University of California, Santa Barbara, CA
Jianwen Su , University of California, Santa Barbara, CA
The main objective of composing web services is to identify usable web services through discovery and to orchestrate or assemble selected services according to the goal specification. In this paper, we formulate and study a framework of composing web services through discovery from a given goal service. A general algorithm for composition with or without a goal service invocation request is developed. Two notions of completeness, "schema completeness" and "instance completeness", are defined, which measure the ability of how thoroughly an algorithm can find a composition. The two notions correspond to compositions without or with a goal service request, resp. We show that schema completeness can be achieved by depth-first or breadth-first search combined with a tightening strategy. Further, the breadth-first search avoids redundancy. We also show that while instance complete algorithms exist, they generally need do invoke all candidate services.
Zhongnan Shen, Jianwen Su, "On Completeness of Web Service Compositions", ICWS, 2007, 2013 IEEE 20th International Conference on Web Services, 2013 IEEE 20th International Conference on Web Services 2007, pp. 800-807, doi:10.1109/ICWS.2007.132
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