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A Petri Net Based Execution Engine for Web Service Composition

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Based on the Petri net description of web service composition， control structures within web service composition， registration information of web services， demand parameters validation， parameters converting among web services through reflection mechanism， output parameters checking and conflict resolution through reflection mechanism are studied。 Afterwards， this paper designs and carries out a Petri-net-based execution engine for web service composition。 Execution engine will invoke atomic web services corresponding to transitions selected to fire simultaneously， and it will feed back the dynamic execution information to Petri net。 Then， execution engine will adjust state of Petri net according to web services execution， selects transitions to fire again with transitions firing rules。 Repeating the above process until the execution of web service composition is done。 All these will push forward the application of Petri net in service oriented computing。

Petri netweb service compositionreflection mechanismexecution engine

Kai Xu、Bingxian Ma

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Shandong Provincial Key Laboratory of Network based Intelligent Computing, Jinan, China ,School of Information Science and Engineering, University of Jinan, China

International workshop on personalization in cloud and service computing;Workshop on semantic technology for eHealth;Workshop on data quality and trust in big data;Workshop on e-health and social computing;Workshop on semantic technology for smarter cities

Nanjing(CN)

Web information systems engineering- WISE 2013 workshops

181-193

2013