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| Criterion | ![]() Agile Affinity Estimation | ![]() DevOps Blameless Postmortem | ![]() Agile 4Ls Retrospective | ![]() Agile Planning Poker |
|---|---|---|---|---|
Purposedifferent | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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. | When estimates within the team diverge too much, it puts differing expectations on a common test bench. It separates rough complexity from unspoken assumptions. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 30-90 min | 45–75 min | 2-5 min je Item |
Participantsdifferent | 3-12 | 3-12 | Team members involved | 3-9 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Postmortem Doc, Action Items, Timeline | 4Ls Board, Learning Themes, Improvement Actions | Relative Estimates, Assumption Notes, Split Candidates |
Tagsno overlap | EstimationBacklogRelative sizing | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveLearningReflectionTeam | EstimationAgileRelative sizingTeam |



