The book deals with some of the fundamental issues of risk assessment in grid computing environments. The book describes the development of a hybrid probabilistic and possibilistic model for assessing the success of a computing task in a grid environment

Introduction.- Generalities on fuzzy sets.- Possibilistic indicators.- Possibilistic risk aversion.- Expected utility operators and possibilistic risk aversion.- Multidimensional possibilistic risk aversion.- Risk aversion with mixed parameters.- Credibility theory.- Concluding remarks.