Abstract: The classification of product characteristics is an important issue in the armament development. It is currently based on reliability prediction and Failure Mode And Effect Analysis (FMEA) without taking account of factors like safety, maintainability and the supportability. This paper, based on analyzing the classification of product characteristics, proposes a model based on fuzzy AHP．This model could offer an order of product excellence based on some rules, which designers may use to determine the order．The model is demonstrated through an example．