Designing of an Orchestration Mechanism for the Efficient Web-Services Composition

Service-oriented architecture (SOA) is an emerging paradigm to build complex applications and business processes. SOA is described by the interactions between the loosely coupled, coarse-grained, and autonomous services. The interactions take place in a distributed environment. The services need interoperability for the heterogeneous applications and complex business processes. Web-services composition (WSC) is thus an important aspect of applications and processes. Two major approaches for the WSCs are orchestration and choreography. The orchestration offers number of advantages over choreography during the WSC. The paper gives a literature review of different approaches and of the tools, which are available for Web-services orchestration (WSO). The paper describes a comparison of earlier WSO approaches taking into account different benchmarks and identifies the needs of the improvements. The paper suggests an orchestration-based improved approach during the WSC and needed steps for that.