The workflows have feedback collection step. This feedback is collected by a user interface and then sent to Trust and Reputation Server by means of a web service call (e.g. SOAP). The call will contain, in addition to the feedback per-se, workflow context information, such as the role in which the user acts in as well as pseudonym of the user at the Trust and Reputation Service (see below). If user is giving feeback about another user, he will know the other user's pseudonym through the business process context. This architecture allows the Trust and Reputation Server to correlate feedback from different sources without the sources having a correlation handle for the user.
The pseudonym of the user at the Trust and Reputation Server is obtained by means of normal discovery and ID mapping (see chained flow).