Title: Migrating two legacy systems to SOA: a new approach for service selection based on data flow diagram

Authors: Basel Bani-Ismail; Youcef Baghdadi

Addresses: Department of Computer Science, Sultan Qaboos University, Muscat, Oman ' Department of Computer Science, Sultan Qaboos University, Muscat, Oman

Abstract: There are many service identification methods (SIMs) to simplify service identification in SOA lifecycle. These SIMs vary in terms of their features (e.g., input artefact, technique). Due to this diversity, few evaluation frameworks have been proposed to guide organisations in selecting a suitable SIM based on their available input artefacts (e.g., source code, business process). This research concerns with SIMs that consider data flow diagram (DFD) as an input artefact, in order to migrate two legacy systems, modelled with DFD, to SOA. Only two SIMs are found in the literature to identify services based on DFD. However, these SIMs do not provide a way to select among the services identified to be implemented as web services. Therefore, this paper aims to bridge this gap by proposing a new approach for service selection based on DFD to assist organisations in speeding up the process of migrating their legacy systems to SOA.

Keywords: service-oriented architecture; SOA; service identification; service identification method; SIM; service selection; service quality; evaluation framework; data flow diagram; DFD.

DOI: 10.1504/IJWGS.2019.100837

International Journal of Web and Grid Services, 2019 Vol.15 No.3, pp.251 - 281

Received: 22 Sep 2018
Accepted: 31 Jan 2019

Published online: 04 Jul 2019 *

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