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Published in:
2014 | OriginalPaper | Chapter
A Dynamic Service Composition Model for Adaptive Systems in Mobile Computing Environments
Authors : Nanxi Chen, Siobhán Clarke
Published in: Service-Oriented Computing
Publisher: Springer Berlin Heidelberg
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Service-based applications must be adaptable to cope with the dynamic environments in which they reside. Dynamic service composition is a common solution to achieving adaptation, but it is challenging in mobile ad hoc network (MANET) environments where devices are resource-constrained and mobile. Existing solutions to dynamic service composition predefine the multiple configurations that may be possible, but this requires knowledge of the configurations a-priori. Alternatively, some solutions provide on-demand composition configurations, but they depend on central entities which are inappropriate in MANET environments. We propose a decentralized service composition model, in which a system dynamically adapts its business process by composing its fragments on-demand, as appropriate to the constraints of the service consumer and service providers. Results show a high composition success rate for the service compositions in high mobility environments.