Service Contracting Using Trust And Risk Models

This paper presents a model for supporting the decision-making of a contracting agent, in the light tithe assignment of a contract to a service agent Such contract, as an operational instrument, describes the causes of the contracting agreement. The performance of the contractor takes place in an open and uncertain environment To deal with such context, we consider judgements that allow deriving degrees of risk in addition to trust and reputation information about a service provider agent. The evaluation scenario describes a service contracting relationship between a contracting agent and a set of potential providers. Results show that the model involving rick calculation is more efficient when seeking for a conservative behavior for the system.