D5.1 TAS3 Trust Management Architecture Design v1.0 open for public review

June 2009 version (v1.0) of deliverable D5.1 (TAS3 Trust Management Architecture Design) is open to public comments, feedback and review !

All feedback welcome ! 

You could download it and publish comment from here:

http://www.tas3.eu/project/publications/download

Executive Summary

This document describes the Trust Policy Management architecture; its basic design, main components and the trust policy language. The Trust Policy Management architecture interfaces with the remaining TAS3 architecture by means of a Trust Policy Decision Point (Trust PDP) which adheres to a standard PDP interface. The Trust PDP makes its decision with the aid of a number of different trust services. Two trust services provide flexible trust metrics from the two existing classes of trust management systems; behavioural trust management and structural trust management. A third trust service provides a novel trust metric based on Key Performance Indicators. Main innovations are the support for different sources of trust in a single framework, improving the use of existing sources of trust and the use of novel sources of trust. The trust framework is flexible and extendable allowing trust service based on new sources of trust to be added easily. As policy language for the integrated trust framework we support four options with increasing expressiveness and corresponding complexity. In this way we allow a trade-off to be made between expressiveness and complexity which is suitable for the chosen application area. Finally we review our design based on the TAS3 requirements.