Abstract

 Dempster Shafer theory is the most important method of reviewing uncertainty for information system. This theory as introduced by Dempster using the concept of upper and lower probabilities extended later by Shafer. Another important application of entropy as a basic concept in the information theory  can be used as a uncertainty measurement of the system in specific situation In this paper have been used a new method for measurement of the uncertainty upper and lower bound with the combination of entropy and Dempster Shafer theory and the maximum and minimum of the uncertainty has been calculated by using of this theory.