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| Criterion |  Architecture Architecture Decision Record |  Agile Sprint Retrospective |  Business Strategy Strategy Execution Loop |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | The Strategy Execution Loop helps avoid treating strategy as a one-off document. It makes visible how strategic decisions are turned into objectives, initiatives, operational work, measurement, and learning. | 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. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 15-45 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | Initial 3-6 h, then monthly or quarterly reviews | 45–75 min |
Participantsdifferent | 1-3 | Scrum Team | 5-12 | Team members involved |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Improvement actions, Team agreements | Execution Loop, Review Cadence, Strategic Learning Log | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | RetrospectiveImprovementLearning | ExecutionCadenceLearningGovernance | RetrospectiveLearningReflectionTeam |