Task performance evaluation for virtual organizations

Task performance evaluation for virtual organizations (VOs) with incomplete and uncertain information about the partners and their performance is investigated. Task performance criteria hierarchy for VOs is established, which is comprised of the quality indicators, the cost indicators, the cooperative satisfaction indicators and the other task-specific indicators. Task performance evaluation approach is constructed based on fuzzy evaluation method. The proposed approach is composed of 6 steps: establish task evaluation criteria hierarchy; develop the scoring scale and standards; determine the weights of the criteria; obtain the fuzzy relation matrixes; compute the fuzzy synthetic evaluation vector; and aggregate task performance indicator value. A numerical example is given to illustrate the proposed approach. The task performance evaluation results can be used as the basis of task performance control and incentive mechanisms for VOs.