View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations PDCA Cycle |  Operations A3 Problem Solving |  Product Discovery Test Card |
|---|---|---|---|
Purposedifferent | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 1 h bis mehrere Wochen | 45-90 min | 20-35 min |
Participantsdifferent | 1-8 | 2-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | A3 Report, Action Plan, Root Cause Analysis | Test Card with a pre-set threshold |
Tagsno overlap | Continuous improvementLeanExperiments | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryHypothesis |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
