NDLI: Dynamic Execution Strategy of Web Service Composition Based on e

Content Provider	IEEE Xplore Digital Library
Author	Dan Yang Hong Wang Yang Liu
Copyright Year	2009
Abstract	Web service composition makes it possible for Web service reused, assembled, providing value-added service. The key problem of web service composition is to find an effective modeling language and to describe it with composition definition language.BPEL4WS is a newly process definition language which is relatively complex and difficult to use. And BPEL4WS only supports static binding of existing services, and put binding of process and services as a known condition. But most of time dynamic service composition is needed to cater to the high dynamic environment. In this paper, firstly a process modeling language e_SPDL based on XML is proposed by simplifying and extending BPEL4WS.e_SPDL is used in the prototype system (e_Scope4WS) which supporting web service composition. The basic structure and control structure of e_SPDL are presented in detail, and a composite service instance described in e_SPDL is given. Then the concept of service container is introduced in e_SPDL which provides the basis for dynamic service execution strategy.And the structure of service container is given. Finally the dynamic execution strategy of the process (i.e. composite service) based on e_SPDL and service container is given.
Starting Page	240
Ending Page	243
File Size	181630
Page Count	4
File Format	PDF
ISBN	9780769537450
DOI	10.1109/HIS.2009.263
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Assembly systems e_SPDL Switches Containers web service composition Educational institutions service container Web services XML Prototypes Computer applications Computer networks Hybrid intelligent systems
Content Type	Text
Resource Type	Article

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