Deming’s Funnel Experiment: Why Adjusting a Stable Process Guarantees More Defects
Tampering with a stable process to chase a target doubles variation. Here is the statistical proof and the operational fix.
The Psychology of Quality
397 articles
How Groupthink Undermines FMEA Reviews and Quality Decisions
Consensus in quality meetings is not always a sign of alignment. It is frequently the result of suppressed dissent, social…
Status Quo Bias in Quality Management: Why Known Defects Persist
Why organizations choose familiar failures over unfamiliar improvements, and the structural mechanisms that keep broken processes in place. Practical strategies…
The Anchoring Effect in Quality Management: How Arbitrary Numbers Distort Engineering Decisions
The first number spoken in a meeting structurally distorts every quality target that follows. Here is how anchors corrupt FMEA,…
Regression to the Mean in Quality Management
Why organizations reward random noise, punish natural correction, and institutionalise interventions that never actually worked.
Not Invented Here: The Hidden Tax on Your Quality System
Why organisations reject proven external solutions and rebuild them from scratch, and the structural mechanisms that break the cycle.
Corrective Action Timelines: Fixing the Systematic Underestimate
Why every 8D and CAPA takes twice as long as promised, and how reference-class forecasting forces honest estimates that customers…
Institutional Self-Preservation in Quality Management
Quality departments are created to eliminate defects, but incentive structures often push them to manage problems rather than solve them.…
Departmental Optimisation Destroys the Quality System
Why local KPI maximisation systematically degrades shared quality infrastructure, and the specific mechanisms that realign departmental incentives with value-stream outcomes.
Deploying Quality Resources Against the System Constraint: An Implementation Sequence
A step-by-step framework for shifting quality engineering, SPC, and inspection from uniform plant coverage to concentrated constraint protection.