38. Product Quality (Quality Assurance)

The primary objective of any product quality system is to ensure that the intended product quality is achieved and sustained through all the stages of the product life cycle. The product definition is the primary vehicle for establishing the quality intention for a product. It needs to be supported by a quality management system that recognises the importance of the quality objectives laid down in the product definition to the eventual marketing success of the product.

Compliance Testing

Product specifications and all other product related activity that derive from the product definition should be tested for compliance against its requirements. Discrepancies should be identified, highlighted, qualified and assessed for impact at the various quality control points of the product life cycle.

Verifying Product Specification Conformance

Of particular importance is the verification of the conformance of design specifications to product definitions. Comparing the completeness of both forms of documentation greatly simplifies and is an early check on product realisation quality. If the product quality is only checked after initial product realisation, it is like closing the gates after the horse has bolted. Sadly, it is too often the method adopted by organisations that should know better.