Policy-Based Customization and Corrective Adaptation of Composite Web Services

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contributor.author Erradi, Abdelkarim en_US
date.accessioned 2010-04-01T10:31:09Z en_US
date.available 2010-04-01T10:31:09Z en_US
date.issued 2010-04-01T10:31:09Z en_US
identifier.citation Erradi A. (2010) ‘Policy-Based Customization and Corrective Adaptation of Composite Web Services’, Int. J. Business Process Integration and Management, Vol., No., pp. 1-18 en_US
identifier.uri http://hdl.handle.net/10576/10648 en_US
description.abstract Due to the typical long-running character of business processes, it is often desirable to be able to change a running process. Common scenarios include the occurrence of faults, the change of business requirements and company policies that need to be reflected in running process instances. Hence, running process instances often need to be adapted to keep fulfilling the functional and QoS requirements of their dynamic business environment. However, current process orchestration engines do not provide the flexibility and dynamism needed to support ad-hoc changes (e.g., add, shift or delete activities) to a pre-defined service flow in order to deal with an exceptional situation that may occur during process execution. In this paper, we advocate a policy-based framework to manage customization and corrective adaptation of Web services in a controlled and reliable way. WS-Policy4MASC language is used to define process-level adaptation requirements. The latter are enforced by MASC (Manageable and Adaptable Service Compositions) middleware both at creation time and during an instance’s lifecycle. MASC middleware can be deployed as a transparent and configurable add-on to a BPEL engine to support the detection of a need to adapt and manage the adaptation. This paper also presents MASC middleware prototype implementation and some experimental results showing its viability and scalability. Several experimental results using a Stock Trading process illustrate the usefulness and effectiveness of our approach to providing adaptive services. en_US
language.iso en en_US
publisher Inderscience Publishers en
subject Adaptive Composite Web Services; process customization, exceptions management, Web services middleware. en_US
title Policy-Based Customization and Corrective Adaptation of Composite Web Services en_US
type Article en_US


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