A Policy Framework including Trust and Reputation inGrid Environments

A Grid defines a particular type of technological and organizational interactionwithin a computational network, describing supply and demand for computationalor data services[1]. However, Service providers usually have more informationabout quality or availability of the services they provide, than their potentialusers (consumers). This case of asymmetrically distributed information usuallyleads to suboptimal results due to occurring uncertainty on the consumer side,and thus to a inferior usage of the Grid in total. Not only providers, but alsoconsumers, can cause asymmetrically distributed information. Both transactionparticipants have to deal with uncertainty caused by environmental factors (e.g.network failures as a result of natural disasters)...