SOA (Service-oriented architecture) is a flexible set of design principles used during the phases of systems development and integration in computing, and a system based on SOA architecture will provide a loosely-integrated suite of services that can be used within multiple separate systems from several business domains. Recently, As SOA is having a substantial impact on development of software architecture many architectures/systems are being developed and designed by utilizing SOA-based style. Although some progresses have been made in several aspects regarding various issues including assessment concerns, there still exist needs for much research in addressing SOA-based software architecture in the design, development and operation. This special issue aims at bringing together researchers and practitioners having the common objective of transforming SOA-based software architecture and method to assess them into a mature discipline with both solid scientific foundations and mature software engineering development methodologies In articular, we will encourage works and discussions about what SOA-based software architecture still needs in order to achieve its original goal.
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