Certified Associate in Software Testing (CAST) Practice Test – 2026 Prep & Study Guide

The concept of the cost of quality encompasses various categories that help organizations understand the expenses involved in ensuring product quality. The main categories typically include failure costs, appraisal costs, and preventive costs.

Failure costs refer to the expenses incurred when a product fails to meet quality standards, encompassing both internal failures (detected before delivery) and external failures (after delivery to the customer). Appraisal costs involve expenses associated with measuring and monitoring activities to ensure quality standards are met, such as inspections and testing. Preventive costs, on the other hand, are investments aimed at preventing defects from occurring in the first place, including training, process control, and quality planning.

The term "build cost," however, does not fit within these accepted categories of cost of quality. While build costs can refer to expenses associated with the actual production of items, they do not specifically address the quality-related costs outlined previously. Understanding these distinctions is crucial for effectively managing and controlling quality costs within an organization.