Application of a proposed reliability analysis multivariate capability index on manufacturing processes

n the manufacturing process of any product intervene several factors associated with the monitored quality characteristics. These factors must be examined with adequate Statistical Quality Control tools to provide estimates of product specification compliance. For this purpose, Process Capability Indices are commonly applied to manufacturing processes, assuming that the quality variables are independent, and the data is normally distributed. Additionally, an increasingly prominent quality characteristic across manufacturing industries is product reliability. This paper explores the advantages of using multivariate capability indices that include product reliability as a key quality criterion.