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| Criterion |  Engineering Failure Scenario Analysis |  Delivery Communication Plan |  Architecture arc42 |  Decision Making Pre-Mortem |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | When many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. | 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. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 45-90 min | 1-2 Tage | 20–45 min |
Participantsdifferent | 3-8 | 2-6 | 1-4 | Small cross-functional group |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Communication Plan, Channel Matrix, Message Cadence | Architecture Document, Context View, Runtime View, Deployment View | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | FailureResilienceRisk | CommunicationStakeholdersDeliveryPlanning | ArchitectureDocumentationCommunication | RiskDecisionFailurePlanning |