An AHP-based evaluation model for service composition

In this paper we present the Analytic Hierarchy Process (AHP)-based composition evaluation model (ASCEM) for service composition, which provides quantitative and global evaluation for selecting composition plans. Quantitative factors and global computing formula are defined also. Thus ASCEM enables dynamic service composition. ASCEM features in following. Firstly, AHP enable a more objective weight-allocating for evaluation factors and the hierarchical model provides more scalability. Secondly, the evaluation parameters include not only the quality properties but also the properties of reasonability and granularity for business processes. Thirdly, this model gives a quantitative and global result. A file-workflow process example is taken to illustrate how to use ASCEM and the results prove that the model is feasible and correct.