This paper deals with a class of statistical quality control procedures and continuous inspection procedures which are optimum for a specified income function and a production model which can only be in one of four states, two of which are states of repair, with known transition probabilities. The Markov process, generated by the model and the class of decision procedures, approaches a limiting distribution and the integral equations from which the optimum procedures can be derived are given.
"A Bayes Approach to a Quality Control Model." Ann. Math. Statist. 23 (1) 114 - 125, March, 1952. https://doi.org/10.1214/aoms/1177729489