Toward the Right Communication Protocol for Web Services

Toward the Right Communication Protocol for Web Services

Zahir Tari (RMIT University, Melbourne, Australia), Manish Malhotra (University of Bejaia, Berber State, Algeria), Abdelkamel Tari (RMIT University, Melbourne, Australia) and Mark McKinlay (RMIT University, Melbourne, Australia)
Copyright: © 2005 |Pages: 24
DOI: 10.4018/jwsr.2005040102
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Web Services require a common understanding of messages and message content in order to interact with each other. Several protocols have been proposed, which are coded into agent interfaces or implemented using framework-specific methods such as shared repositories. However, an agent wishing to interact with a large number of other disparate agents cannot be expected to have knowledge of how to initiate or maintain a conversation with all other agents it may encounter. In this paper, we propose a dynamic communication protocol for Web services—DynWES. This involves the publication of protocol specifications representing a finite state machine (FSM). A client agent downloads this specification, validates it for correctness, and then implements the protocol dynamically as a state machine. Mechanisms for building FSMs and checking their correctness are presented. An implementation of DynWES also is described and tested (using applications in the wine selling business domain).

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