Crucial Phases of Composite Web Service Development
نویسنده
چکیده
Composite Web services are built as workflows made up of component Web services. WS-BPEL has become the de facto standard used for the development of above mentioned workflows. Apart from introducing main streamlines related to SOA architectures and WS-BPEL language, the paper identifies some crucial issues that must be solved during composite Web service development: granularity aggregated inside of component Web services, defining a framework for invocation regardless of Web service provider, version management, discovery of component Web services, communication among component Web services and legacy system integration. They are candidates for future research. Only some of the existing research activities in mentioned crucial areas are illustrated in the paper due to space limitations. Since WS-BPEL syntax is XML based, there are lots of models for easier development of orchestrations. Some of the existing models for model driven development of orchestrations are introduced in the latter part of the paper. Keywords-composite Web service development; orchestration; model driven development
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