Which quality definition is most ambiguous and subjective?

Transcendent quality is considered the most ambiguous and subjective definition among the quality concepts. This definition refers to an ideal of quality that is often articulated in terms of excellence or perfection and can vary greatly depending on individual perceptions and experiences. As such, it encompasses an intrinsic value and a philosophical standpoint that does not easily translate into measurable or objective criteria.

In contrast, other definitions of quality tend to be more aligned with specific criteria or standards. For example, manufacturing-based quality focuses on conformance to specifications and consistency in production. Value-based quality assesses how well a product or service meets customer expectations and needs, often measured against the price. Customer-based quality emphasizes meeting the specific requirements and satisfaction of the customer, which, while still subjective, has clearer frameworks for measurement through customer feedback and satisfaction surveys.

Transcendent quality, due to its focus on idealism and personal perceptions, especially lacks clear metrics, making it the most subjective of all the quality definitions presented. This nuance appeals more to personal interpretation and excelling beyond standard definitions, thus embodying ambiguity in its definition and application.