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| Criterion |  Decision Making PERT Estimation |  Architecture Architecture Decision Record |  Decision Making Assumption Surfacing |
|---|---|---|---|
Purposedifferent | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 15-45 min | 15-45 min | 45-90 min |
Participantsdifferent | 1-8 | 1-3 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | ADR File, Decision Log, Rationale | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | EstimationUncertaintyRisk | ArchitectureRationaleDocumentationGovernance | AssumptionsRiskDecisionDiscovery |
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