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| Criterion |  Decision Making Pre-Mortem |  Product Strategy ICE Scoring |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. | 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. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 20–45 min | 30-60 min | 15-45 min | 1-2 Tage |
Participantsdifferent | Small cross-functional group | 2-8 | 1-3 | 1-4 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | ICE Table, Top Idea List | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | RiskDecisionFailurePlanning | PrioritizationScoringGrowthDecision | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |