Article ID: | iaor20083008 |
Country: | United Kingdom |
Volume: | 23 |
Issue: | 4 |
Start Page Number: | 339 |
End Page Number: | 358 |
Publication Date: | Jul 2007 |
Journal: | Applied Stochastic Models in Business and Industry |
Authors: | Ho Linda Lee, Trindade Anderson Lacio Galindo, Quinono Roberto da Costa |
Keywords: | probability, markov processes |
The aim of this paper is to present an online economical quality-control procedure for attributes in a process subject to quality deterioration after random shift and misclassification errors during inspections. The process starts in control (State I) and, in a random time, it shifts to out of control (State II). Once at State II, the non-conforming fraction increases according to a non-decreasing function ψ(z), where z is the number of items produced after a shift. The monitoring procedure consists of inspecting a single item at every