Study on simulation credibility metrics

Currently, there appears to be an over-preoccupation with building simulation validity in simulation credibility evaluation. However, today's simulation systems become more complex and larger, the only validity metric can't represent simulation credibility, and there is a need for other credibility metrics. Therefore, we should rethink the basic problem in the simulation community: what are the metrics of simulation credibility. In this paper, credibility metrics are deeply investigated and presented, measurement methods for credibility metrics are discussed, a new approach to synthesis of credibility metrics is presented, and a credibility metrics driven (verification, validation, accreditation) VV&A process is discussed.