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Title:
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TOWARDS A SERVICE-DRIVEN PETRI NETS-BASED CONCEPTUAL MODEL FOR WEB SERVICES |
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Author(s):
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Bassam Zafar , Hussein Zedan , Monika Solanki |
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ISBN:
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972-8924-16-X |
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Editors:
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Pedro Isaías, Maggie McPherson and Frank Bannister |
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Year:
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2006 |
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Edition:
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2 |
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Keywords:
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Web services modelling |
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Type:
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Short Paper |
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First Page:
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338 |
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Last Page:
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343 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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The internet is going through several major changes. It has become the vehicle of Web services rather than just a
repository of information. Currently more and more distributed systems are built based on service oriented architecture
(SOA), which can be implemented using Web service technologies. Service- oriented architecture is emerging as a
compelling paradigm for developing web-based software applications. In this style, the functional components of the
system are implemented in various programming languages as network-accessible services declaratively specified (in
WSDL) and declaratively composed in workflows (using BPEL4WS). The benefits of SOA include better
interoperability, scalability, reuse and so on. Service composition techniques are crucial to unleash the full strength of
SOA. Secure and customizable services are usually stateful; they often exhibit complex conversation behaviours
(protocols). Incorporation of stateful services poses an interesting challenge to service composition problem. The aim of
this paper is to contribute to the field of Web services modelling. We introduce a new conceptual model based on
combining object-oriented structuring mechanisms with High-level Petri nets. The preliminary conceptual model is
illustrated with simple case studies. |
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