Which of the following is NOT one of Philip Crosby's four absolutes of quality?

The choice indicating that quality is a measure of customer satisfaction is not one of Philip Crosby's four absolutes of quality. Crosby's approach centers around the concept that quality is primarily about conformance to defined standards and the prevention of defects, rather than subjective measurements like customer satisfaction.

Crosby defined his four absolutes as:

1. Quality is defined as conformance to requirements.

2. The system of quality is prevention.

3. The performance standard is zero defects.

4. The measurement of quality is the cost of non-conformance.

Crosby emphasizes that quality should be grounded in processes and standards rather than the satisfaction derived by customers, which can vary significantly between different individuals and is difficult to quantify consistently. Thus, framing quality solely as a measure of customer satisfaction does not align with his philosophy, which focuses on objective criteria and proactive measures to ensure quality throughout an organization.