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From StPowla processes to SRML models

By Laura Bocchi, Stephan Reiff-Marganiec and Stephen Gorton

Abstract

This is the authors' final draft of the paper published as Formal Aspects of Computing, 2010, 22(3-4), pp.243-268. The original publication is available at www.springerlink.com , DOI: 10.1007/s00165-009-0118-7Service Oriented Computing is a paradigm for developing software systems as the composition of a number of services. Services are loosely coupled entities, that can be dynamically published, discovered and invoked over a network. The engineering of such systems presents novel challenges, mostly due to the dynamicity and distributed nature of service-based applications. In this paper, we focus on the modelling of service orchestrations. We discuss the relationship between two languages developed under the Sensoria project: SRML as a high level modelling language for Service Oriented Architectures, and StPowla as a process-oriented orchestration approach that separates core business processes from system variability at the end-user’s level, where the focus is towards achieving business goals. A fundamental challenge of software engineering is to correctly align business goals with IT strategy, and as such we present an encoding of StPowla to SRML. This provides a formal framework for StPowla and also a separated view of policies representing system variability that is not present in SRML

Topics: Service modelling, Policies, workflows, Service oriented architecture
Publisher: Springer
Year: 2010
DOI identifier: 10.1007/s00165-009-0118-7
OAI identifier: oai:lra.le.ac.uk:2381/9076

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