NDLI: A Constraint Mechanism for Dynamic Evolution of Service Oriented Systems

Content Provider	IEEE Xplore Digital Library
Author	Bingyang Zhao Yongwang Zhao Dianfu Ma
Copyright Year	2012
Abstract	Service Oriented Architecture (SOA) is a new form of distributed software architecture, which promotes loose-coupling and coarse-granularity. It deploys, composes and calls application components in a distributed way on Internet. The dynamics of Internet environment poses challenge to dynamic service oriented system. The distributive Internet environment requires SOA to be more distributive and self-adaptive, and choreography emphasizes the collaboration between services. Also, more flexible and dynamic software architecture is demanded for service-based software. A strong constraint mechanism which describes architectural limitation of run-time system is needed to make sure the system runs correctly. The main contribution of this paper is a graph grammar based modeling and verification approach for constrained evolution of service-oriented system. System specification described by SOA pattern and structural constraints and their satisfaction checking algorithms are proposed. We have implemented a constrained evolution verification tool that allow us to model runtime SOA, constraints and verify consistency at design-time. Further, a constraint decomposition method towards member services is given for the non-central executable SOA. And we described an adaptive collaboration policy between services to verify consistency when evolution occurs at runtime. A runtime environment's architecture for constraint evolution service oriented system is also proposed.
Starting Page	103
Ending Page	110
File Size	1062726
Page Count	8
File Format	PDF
ISBN	9781467304993
ISSN	15550885
e-ISBN	9780769546438
DOI	10.1109/ISORC.2012.22
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Service oriented architecture Semiconductor optical amplifiers Production Runtime Computer architecture Collaboration Unified modeling language constraint verification SOA service collaboration architecture evolution
Content Type	Text
Resource Type	Article

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