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| Criterion |  Innovation Double Diamond |  Architecture arc42 |  Operations After-Action 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | Wochen bis Monate | 1-2 Tage | 20-45 min |
Participantsdifferent | 3-12 | 1-4 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Architecture Document, Context View, Runtime View, Deployment View | Lessons learned, Action items, Event summary |
Tagsno overlap | ProcessDivergenceInnovation | ArchitectureDocumentationCommunication | LearningOperationsImprovement |
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