Migrating Legacy Systems to a Service-Oriented Architecture with Optimal Granularity

Alahmari, Saad, Zaluska, Ed and De Roure, David (2010) Migrating Legacy Systems to a Service-Oriented Architecture with Optimal Granularity. In, 12 International Conference on Enterprise Information Systems, Funchal, Maderia - , Portugal, 08 - 12 Jun 2010.


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The enhanced interoperability of business systems based on Service-Oriented Architecture (SOA) has created an increased demand for the re-engineering and migration of legacy software systems to SOA-based systems. Existing approaches focus mainly on defining coarse-grained services corresponding to business requirements, and neglect the importance of optimising service granularity based on service reusability, governance, maintainability and cohesion. An improved migration of legacy systems onto SOA-based systems requires identifying the ‘right’ services with an appropriate level of granularity. This paper proposes a novel framework for the effective identification of the key services in legacy code to provide such an optimal mapping. The framework focuses on identifying these services (based on standardized modelling languages UML and BPMN) and provides effective guidelines for identifying optimal service granularity over a wide range of possible service types.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: 8 - 12 June 2010
Keywords: Service-Oriented Architecture, Service granularity, Software Evolution, Legacy Systems, Architecture Modelling.
Divisions : Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Web & Internet Science
ePrint ID: 271008
Accepted Date and Publication Date:
June 2010Submitted
Date Deposited: 06 May 2010 16:06
Last Modified: 31 Mar 2016 14:17
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/271008

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