Conformance to requirements or fitness for use. Quality can be defined through five principal approaches: 1) Transcendent quality is an ideal, a condition of excellence. 2) Product-based quality is based on a product attribute. 3) User-based quality is fitness for use. 4) Manufacturing-based quality is conformance to requirements. 5) Value-based quality is the degree of excellence to an acceptable price. Also, quality has two major components: a)