20

Decision

Pareto Principle

Distribution Inequality — the 80/20 rule.

The article

If

80% of bugs come from 20% of the code. 80% of value comes from 20% of the features.

Then

Identify the "Critical 20%" and give it 100% of your quality focus.

Unless

Ruthless Prioritization

Source

Vilfredo Pareto, Cours d'Économie Politique (1896); applied to quality engineering by Joseph M. Juran (Quality Control Handbook, 1951).

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See also