Impact of inspection errors on the performance measures of a general repeat inspection plan

Salih O. Duffuaa, Mehmood Khan

International Journal of Production Research · 2005 · 61 citations · 14 references

Concepts

TL;DR

Critical components with multiple characteristics are found in systems such as aircraft, space shuttles, and gas ignition systems, and a quality‑control inspection plan has been proposed to address inspector classification errors. The study defines performance measures for the inspection plan and investigates the statistical and economic impact of various inspection errors on these measures. The authors performed sensitivity analysis using computer software that optimizes the plan’s parameters to examine how performance measures change with varying error levels. The results show that inspection errors significantly affect the performance measures of the plan.

Abstract

Multi-characteristic critical components exist in many systems. Such components may be a part of an aircraft, space shuttle or a gas ignition system. An inspection plan for such components has been proposed in quality control that deals with several types of classification errors made by the inspector. In this paper, performance measures for this plan are defined and the statistical and economic impact of the several types of inspection errors on these measures is investigated. The impact of the errors is studied by conducting sensitivity analysis on the errors utilizing computer software which implements an algorithm that determines the optimal parameters of the model of the plan. The behaviour of the performance measures upon variation in the levels of errors is investigated. The results indicate that these errors have a considerable effect on the performance measures of the inspection plan.

References

14