ISSN : 1796-2056
Volume : 4    Issue : 4    Date : June 2009

SWSCF: A Semantic-based Web Service Composition Framework
Jianqiang Hu, Juanzi Li, and Zhiyong Zeng
Page(s): 290-297
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Web service composition is gaining a considerable momentum as an approach to the effective
integration of distributed, heterogeneous, and autonomous application. Current composed service
processes are mostly generated in the syntactic level and in a manual way. The limitation of the
approach is that it does not allow business to dynamic change partners and services. In order to
avoid this disadvantage, it is critical to map complex business from abstract process to executable
flows according to application domain semantics and dynamic business requirements. In this
paper, we first present a semantic-based Web service composition framework called SWSCF
based on both semantic process recommendation and semantic matchmaking. Then, we analyze
some key technologies including: (1) Introducing hierarchical activity mechanism for dynamic
decomposition of business requirements to find a suitable semantic process template; (2)
Searching and selecting service chain to match a semantic activity template which is used to specify
an abstract activity; (3) Devising heterogeneous message transforming mechanism to eliminate the
incompatible message types during generating data flow of an executable process. Furthermore, by
comparison with some service composition frameworks, we prove SWSCF to be more flexible and

Index Terms
Hierarchical activity mechanism; searching and selecting service chain; heterogeneous message
transforming mechanism; semantic-based Web service composition framework