A Graph Transformation based Approach for Runtime Constrained Evolution of Service-Oriented Architectures

Service Oriented Architecture (SOA) is a new form of distributed software architecture. SOA promotes loose coupling, services distribution, dynamicity and agility. Services involved in an SOA are remote and autonomous services, the SOA designer can not control them and unpredictable behavior can occur. This makes the SO different from other architectures for its special architecture elements and its dynamic and evolving structure. How to model this specific architecture and support service-oriented development is unimportant research field in service-oriented software engineering community. This paper proposed a graph transformation based approach to model SOA and its evolution at runtime. Graph grammar is used tore present the architectural style, type and structural constraints are introduced to improve the robustness and adaptability when reconfiguring the architectures at runtime.