Experiences from using a UML-based method for trust analysis in an industrial project on electronic procurement

This paper reports on experiences from using a UML-based method for trust analysis in an industrial project. The overall aim of the trust analysis method is to provide a sound basis for making trust policy decisions. The method makes use of UML sequence diagrams extended with constructs for probabilistic choice and subjective belief, as well as the capture of policy rules. The trust analysis method is evaluated with respect to a set of criteria. The industrial project focused on the modeling and analysis of a public electronic procurement (eProcurement) system making use of a validation authority service for validating electronic certificates and signatures.