Question

There are different types of costs of quality. What cost is most difficult to measure

Answer 1

The most difficult cost of quality to measure is - Cost of Poor Quality through External Failures

External Failures represent the defective products or issues experienced and reported by the customers. These are difficult to measure as they are experienced at a stage when the products reach the customers and they identify or use it. The cost not only includes the direct defective product cost but also includes the lost sales due to customer dissatisfaction.