We provide some unifying definitions, make some corrections to articles by Faraz and Parsian (J Stat Pap 47:569-593, 2006) and Costa (J Qual Technol 26:155-163, 1994; 29:197-204, 1997), and using these provide more accurate tables of results and comparisons of control charts. We also investigate the impact of an incorrectly specified process shift on signal frequency.
- Adjusted average time to signal (AATS)
- Markov chain
- Quality control charts
- Variable sample size (VSS)
- Variable sample size and sampling intervals (VSSVSI)
- Variable sampling intervals (VSI)