A comprehensive assessment method for reliability enhancement testing based on D-S theory of evidence

In this paper the Dempster-Shafer theory of evidence is utilized in comprehensive assessment of the reliability enhancement testing (RET). The basic concept of the D-S theory and the rule of evidence-combination are introduced. Moreover, the approach to the assessment of the RET utilizing the D-S theory of evidence is presented. Firstly a recognition frame for all possible effects of RET programs on the product´s reliability is established. Secondly every test program is regarded as a piece of evidence and the corresponding evidence body is set up. Finally all evidence is combined according to the D-S rule of combination. In addition, an example is presented to verify this method. It is proved that this approach should increase the accuracy of the comprehensive assessment of RET and be useful in engineering.