Trust-Based Optimal Workplace Coalition Generation

Optimal workplace coalition generation is a key technique in migrating workflow. A trust model that describes cooperation relationships among workflow entities is presented. Different from traditional trust models, the trust model organizes confidence of a workflow engine in a workplace by two categories, capability confidence and recommendation confidence. Based on the trust model, oriented towards the workflow goal, the procedure of optimal workplace coalition generation using a coalition structure generation method is proposed. The optimal workplace coalition serves as a group of workplaces with the maximum trust values that can guarantee execution of a business process.