Normalization of Deviance in Quality Systems: How Accepted Deviations Become Catastrophes
When organisations gradually accept out-of-spec conditions as normal, their quality systems fail. Here is how to detect and stop the…
The Psychology of Quality
404 articles
The Base Rate Fallacy in Quality Management: Why Organisations Chase Anecdotes and Ignore Data
Quality teams routinely investigate vivid incidents while ignoring the statistical base rates that drive systemic defects. Here is how to…
The Herd Instinct in Quality: When Consensus Replaces Evidence
How social conformity corrupts supplier approval, tool selection, and target-setting — and the governance mechanisms that force teams back to…
Illusory Superiority in Quality Management: Why Every Plant Rates Itself Above Average
Cognitive bias systematically distorts internal audits, self-assessments, and management reviews. Here is how to engineer your QMS to counteract it.
The Sunk Cost Fallacy in Quality Management
Why organisations keep pouring money into failing quality systems, and the structural governance needed to stop backing the wrong process.
Perverse Incentives in Quality Management: How Metrics Create the Problems They Should Solve
Why quality KPIs backfire, the five-stage anatomy of a distorted metric, and the specific design principles that stop operators and…
Chesterton’s Fence in Quality Systems: Removing Process Controls You Don’t Understand
Why lean transformations and cycle-time reductions frequently trigger dormant defects. A practical framework for evaluating legacy process controls before eliminating…
Defeating the Representativeness Heuristic in Root Cause Analysis
Why experienced quality teams consistently misdiagnose defects by chasing the obvious suspect, and the structured methods that force investigators to…
Goodhart’s Law in Quality Management: When KPIs Replace the Excellence They Measure
When a measure becomes a target, it ceases to be a good measure. Here is how metric corruption destroys IATF…
Visual Management as a Quality Control: From Wall Decoration to Process Guarantee
Most plants confuse visual management with putting charts on walls. The real mechanism is an engineered information environment that makes…