5W1H
Free5W1H Problem Definition
Structure the problem by filling What, Where, When, How, Why, and Who questions systematically.
Typical use
- Initial quality issue definition
- Before customer complaint analysis
Basic level
Simple quality templates for definition, root cause, and action follow-up.

Structure the problem by filling What, Where, When, How, Why, and Who questions systematically.
Typical use
Provides a report skeleton for team, problem definition, root cause, and permanent actions.
Typical use
Track small, continuous improvements in a problem-goal-action-result format.
Typical use
Define error-proofing ideas and evaluate feasibility and impact.
Typical use