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On Comprehensive Contractual Descriptions of Web Services
Hong Kong, China March 29-April 01
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/EEE.2005.942005 IEEE International Conference on ...
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Vladimir Tosic, The University of Western Ontario, Canada
Bernard Pagurek, Carleton University, Canada
Comprehensive contractual description of Web Services and Web Service compositions is needed for selection of appropriate Web Services and their service and quality of service (QoS) levels, for monitoring of operation of Web Services, and for management of Web Services and Web Service compositions. We systematically examined what types of technical contracts are useful for Web Services and Web Service compositions and classified them into three broad categories (functional, quality, and infrastructure contracts), each containing several contract types. Our study of how prominent Web Service languages can or cannot be used for specification of these contract types shows that they enable specification of only particular types of contracts, sometimes even in incompatible ways. Consequently, we advocate a unified framework for comprehensive contractual description of Web Services and Web Service compositions. At the end, we outline one possible approach to comprehensive contractual description, based on extending existing Web Service technologies.
Citation:
Vladimir Tosic, Bernard Pagurek, "On Comprehensive Contractual Descriptions of Web Services," eee, pp.444-449, 2005 IEEE International Conference on e-Technology, e-Commerce and e-Service (EEE'05), 2005
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