Using Adaptive Scheme to Monitoring Dependent Steps with Attributes Data

Abstract

The article considers the dependent process steps with attributes data. We explore the monitoring of the dependent process steps with attributes data by using two designed variable sample size and sampling interval cause selecting control charts, and then evaluate their performance by the adjusted average time to signal. Numerical example and simulation study illustrated that the proposed VSSI charts have better performance than the fixed parameters control charts. The proposed VSSI cause selecting charts are thus recommended.