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| Criterion |  Agile Sprint Retrospective |  Operations Ivy Lee Method |  Operations ABC Analysis |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 5-10 min daily | 30-60 min | 45–75 min |
Participantsdifferent | Scrum Team | 1 | 1-5 | Team members involved |
Formatdifferent | Workshop | Async | Async | Workshop |
Outputdifferent | Improvement actions, Team agreements | Daily Priority List, Completion Notes | ABC Classification, Focus Rules, Control List | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | RetrospectiveImprovementLearning | PrioritizationProductivityExecution | PrioritizationOperationsPortfolio | RetrospectiveLearningReflectionTeam |