Adaptive application-specific middleware
Proceedings of the 1st workshop on Middleware for Service Oriented Computing (MW4SOC 2006)
On extending WS-policy with specification of XML web service semantics
CEA'07 Proceedings of the 2007 annual Conference on International Conference on Computer Engineering and Applications
A formal language for electronic contracts
FMOODS'07 Proceedings of the 9th IFIP WG 6.1 international conference on Formal methods for open object-based distributed systems
Pairwise testing of dynamic composite services
Proceedings of the 6th International Symposium on Software Engineering for Adaptive and Self-Managing Systems
Web service e-contract establishment using features
BPM'06 Proceedings of the 4th international conference on Business Process Management
A survey on service quality description
ACM Computing Surveys (CSUR)
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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.