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| Criterion |  Innovation Double Diamond |  Operations After-Action Review |  Operations 5 Whys |  Operations Learning Review |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | Wochen bis Monate | 20-45 min | 15-30 min | 1-3 h |
Participantsdifferent | 3-12 | 3-12 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Lessons learned, Action items, Event summary | Root cause notes, Countermeasures | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | ProcessDivergenceInnovation | LearningOperationsImprovement | Root causeIncidentLeanProblem solving | LearningRetrospectiveIncidentOperations |