Agile people may have had their first real quality thinker and champion almost 70 years ago with Joseph Juran (should I say three score and 10 years ago?)
More in line with Agile thinking, Juran began the quality shift away from W. Edwards Deming’s product focus and toward a customer focus. He -- Juran -- is known for his advocacy of the Juran trilogy:
- Quality improvement,
- Planning, and
Juran stressed the quality concept of fitness for use. He believed that meeting a specification is a necessary condition, but insufficient without fitness to use—that is, honoring the customer’s idea of product value and utility. In a word, features are not valuable unless they are everyday useful.
Juran’s ideas are what agile practitioners think of as favoring customer value over following a plan.
- Quality of design, a judgmental parameter with grades of goodness
- Conformance to standards and customary expectations of the market
- Safety in use
- Usability in a customer’s setting
- Availability, a consequence of frequency of breakdown and rapidity of repair
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