Abstract
Trustworthiness evaluation is an increasingly common theme in service-oriented computing. However, existing approaches are not effective for web services trustworthiness assessment. In this paper, we present a web services trustworthiness evaluation model based on Fuzzy Cognitive Maps. The model combines the trust evidence framework and the dynamic context reputation feedback at runtime. The simulation results show that this model is effective for web services trustworthiness evaluation at both development stage and runtime adaptively.