Dynamic Structure Mechanism Based on Lightweight Relevancy for Web Services Directory

The task of composing Web services workflow can be unwieldy for a huge size Web services network. The challenge is even intensified when dealing with continuous changes of the business practices, processes and transactions. The dynamic business environment compels the Web service providers to do high maintenance for the directory update to ensure validity, consistency and seamless service searching. In order to build Web service directories that are amenable to the business changes, this paper showed a novel solution using dynamic structure mechanism based on lightweight relevancy for the Web service directory. The mechanism works on the two main techniques: lightweightrelevancy modelling and forward-chaining monitoring. Lightweight-relevancy modelling simplifies the semantic link in order to reduce the searching effort; forward-chaining monitoring that maintains the relevancy and consistency. The dynamic structure mechanism suitably positioned as the interface layer between the discovery engine of the Web service agency and the Web service directories.