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Criterion
A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)
Paper illustration of two considered options leading to a decision record with a marked status and visible consequences.
Architecture
Architecture Decision Record
Paper illustration of Request for Comments (RFC) with its method-specific working model.
Architecture
Request for Comments
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.ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation.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.An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale.
Complexitydifferent
LowHighLowMedium
Timedifferent
20–45 minSeveral meetings plus preparation and analysis; total effort depends on scope15-45 min1-3 Wochen vom Draft bis zur Entscheidung
Participantsdifferent
Small cross-functional groupEvaluation team, architects, and relevant stakeholders1-33-20 Reviewer
Formatdifferent
WorkshopWorkshop + asyncAsyncAsync
Outputdifferent
Risk list, Mitigation plan, Assumption logPrioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigationsADR File, Decision Log, RationaleRFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets
Tagsno overlap
RiskDecisionFailurePlanning
ArchitectureQualityRiskTradeoffsStakeholders
ArchitectureRationaleDocumentationGovernance
ArchitectureDecisionAsyncGovernance
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