A new trust evaluating model for web services access

The utility of Web services requires secure and constant services, but the existence of dishonest nodes services could damage the accessibility and availability in open networks. The existing trust models in open networks ignore a fact that object itself can provide trust information for services. This paper proposes a service trust model, which involves active trust of service provider and combines direct trust and recommendation trust. Also we are using a belief model of evidence theory with belief, disbelief and uncertainty functions. Our proposed model expands the range of service source via active trust of object, which makes the access path to resource more flexible.