Abstract
In this paper we provide a methodology for disaster management in information technology. We provide a framework to explore the relationship among threats, events, control alternatives and losses. In evaluating a control alternative, we look beyond the traditional expected value as a summary measure of expectation and the traditional variance as a measure of dispersion. A new measure of dispersion is introduced which incorporates the decision maker's disposition. This generalised variance can be used in conjunction with an attitudinal expected value of an alternative's payoffs in order to allow the decision maker to assess the overall value of alternatives.
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