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| Criterion |  Agile 4Ls Retrospective |  Product Discovery Learning Card |  Product Discovery MVP Test Matrix |  Agile Mad Sad Glad |
|---|---|---|---|---|
Purposedifferent | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | When a team's or workshop's mood needs to become readable, it structures emotional signals with little setup. It makes strain, relief, and sources of energy tangible. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 45–75 min | 25-40 min | 45-75 min | 30-60 min |
Participantsdifferent | Team members involved | 1-5 | 2-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Learning Card with evidence and next action | Test Matrix, Test Plan | Emotion Board, Themes, Action Items |
Tagsno overlap | RetrospectiveLearningReflectionTeam | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryOptions | RetrospectiveTeamReflection |