Despite Joseph Juran's strong emphasis, the cost of quality (COQ) concept has not been adopted as a performance metric in many organizations with a quality management (QM) initiative in place. Several studies in the quality literature confirm that conclusion. There are some discussions in studies on the causes preventing the COQ construct to fully attain its potential adoption as a performance metric. These studies enumerate the myriad of causal issues but do not address those problems in both causes and their potential solutions. In this work, one of those causes is addressed via the comparison of how different authors recommend applying the prevention, appraisal, and failure model (PAF model) in COQ. Several common and different approaches to this problem can be observed. The lack of standardization is one of the many problems underlying the lack of adoption of COQ as a performance metric in QM applications. To solve the standardization problem, it is critical to jointly address the problem based on a multi-methodology framework as it is presented in different scientific fields to overcome the models' theoretical and practical limitations.
