Discard/Repair Cost (DIREC) Model Repair Versus Throwaway Printed Circuit Cards and Modules

摘要

Discard versus repair policies have been subjected to numerous studies in attempt to prove or disprove the specific policy. This study is an attempt to revise and develop a model in which total parameters involved may be considered. For example, acquisition cost is a single parameter against which total cost of repair may be played in a model. This is true since once an item is repaired and returned to the pipeline it is subjected to the same cost effects as a newly acquired item. This report discusses the total cost of repair to include the return of unserviceable items to a repair facility, test and repair of the items, and return as serviceable to the pipeline. The parameters involved are discussed in a decision model. The objective of the decision model is to determine cost effectiveness of discard or repair and establish policy. A spin-off of the model is that analysis of output against real time data permits determination of effectiveness of earlier decisions as well as examination of system effectiveness in meeting reliability goals.