An SOA Application Construction Model Based on Timing Constraint

The key to establish SOA application is service auto-discovery and composition. Traditional method is static configurable, such as BPEL. But the web services may be not able to satisfy the requirements of time and resource constraint in their later lifecycle. That would produce diffuseness of web service invoking, and furthermore lead to lower availability, configuration efficiency and even application invalidation. In this paper, we present a model for dynamic SOA application construction, and put forward relevant probabilistic algorithm to validate the model's applicability for concurrent and sequential applications respectively.