IT outsourcing service provider dynamic evaluation model and algorithms based on Rough Set

The traditional supplier evaluation methods mostly belong to the static evaluation, and the actual information service provider selection is a dynamic process, need to use dynamic evaluation method to measure. In order to select the IT outsourcing service provider, the tool which uses complex scientific management system-thinking - Exploration diagram, established the index system for the selection of IT outsourcing. Based on it, the decision table of dynamic IT-Outsourcing service provider selection is made. The decision rule set of IT outsourcing service provider prediction is obtained by applying rough set theory of the decision table attribute reduction and value reduction. Finally, a calculation example of IT outsourcing service provider selection is illustratedwhich shows that the mentioned evaluation method is feasible and efficient for dynamic IT outsourcing service provider selection and prediction. Thus, it supplies reasonable analysis and policy making of IT outsourcing service provider.