Davis (1974) mendefinisikan Nilai sebuah Informasi sebagai berikut: In general, the value of informaton is the value of the change in decision behavior caused by the information less the cost of the information. In other words, give a set of possible decisions, a decision maker will select one on the basis of the information at hand. If new information causes a different decision to be made, the value of the information is the difference in value between the outcome of the old decision and that of the new decision, less the cost of obtaining the information