An Approach to Improving Trust Estimation in Service-Based Systems

Service-based systems (SBSs) are distributed systems which have many advantages, including rapid composition of services for distributed applications. In these systems, various capabilities are provided by service providers as services interconnected by networks. It is important for users of SBSs to have confidence in the trustworthiness of service providers. Existing approaches to trust estimation for SBSs do not incorporate human factors, such as interpersonal relationships. In addition, the trust computation in existing trust models is based on pairwise relationship, which does not include the transitivity of trust. In this paper, an approach to improving the trust estimation for SBSs by incorporating two important aspects of interpersonal relationships is presented.