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Criterion
A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem
A paper-based illustration representing arc42 with its core stages and visible working result.
Architecture
arc42
Red Teaming method illustration showing its working structure
Decision Making
Red Teaming
Paper illustration for Argument Mapping
Decision Making
Argument Mapping
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.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.For strategic decisions with high reach, agreement and gut feeling are often not enough. Red teaming brings deliberate opposition into the situation and tests where a plan breaks under real counterarguments.When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on.
Complexitydifferent
LowLowHighMedium
Timedifferent
20–45 min1-2 Tage1-4 h1-3 h
Participantsdifferent
Small cross-functional group1-43-81-8
Formatdifferent
WorkshopWorkshop + asyncWorkshopWorkshop + async
Outputdifferent
Risk list, Mitigation plan, Assumption logArchitecture Document, Context View, Runtime View, Deployment ViewChallenge Findings, Risk Register, Mitigation PlanArgument Map, Evidence Gaps, Decision Rationale
Tagsno overlap
RiskDecisionFailurePlanning
ArchitectureDocumentationCommunication
RiskDecisionSensemaking
SensemakingDecisionRationale
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