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A Web service choreography describes a global protocol of interactions among a set of cooperating services. For the dynamic composition, changing interconnections by channel passing between services is necessary. In this paper we use model checking technique for the verifying problems related to channel passing in choreography. We develop a framework: for each kind of property to be verified, we define...
BPEL (Business Process Execution Language) has become the standard for specifying and executing workflow specifications for Web service composition invocation. A major weakness of BPEL is the lack of so-called "human workflow" support. The BPEL4People specification tries to amend this by adding human task support to BPEL. In this paper, we propose a formal model of BPEL4People using the...
Despite the importance for expressing location mobility and dynamic composition, channel passing has almost been ignored in the formal work on Web service composition. One important problem here is to ensure that each service in a composition can always get sufficient and correct channels for completing their collaborative work. To support reasoning and verification of those properties of service...
The BPEL is designed for integrating and orchestrating Web services and it provides the profound solution to model business process relying on Web service platform. ActiveBPEL is a commercial-grade open source implementation engine for BPEL. In this paper, we describe the work on tool support for the BPEL verification in ActiveBPEL. We implement the algorithm of the mapping from BPEL to timed automata,...
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