Rapid validation of a medical expert system using precedence logic

Abstract

The food and drug administration has noted that computer deficiencies and inadequate validation have contributed to errors in blood collection centers. The authors have developed a precedence-logic expert system which permits the software developer to write statements which can never be changed by subsequent programming actions. This allows for linear growth in the validation test set required to assure that donor units with positive test results are not released for transfusion.<>