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Selected:Assumption Surfacing Architecture Decision Record Architecture Communication Canvas Request for Comments

Criterion	Decision Making Assumption Surfacing	Architecture Architecture Decision Record	Architecture Architecture Communication Canvas	Architecture Request for Comments
Purposedifferent	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.	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.	The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design.	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	Low	Low	Medium	Medium
Timedifferent	45-90 min	15-45 min	60-120 min	1-3 Wochen vom Draft bis zur Entscheidung
Participantsdifferent	2-8	1-3	2-8	3-20 Reviewer
Formatdifferent	Workshop + async	Async	Workshop + async	Async
Outputdifferent	Assumption List, Critical Assumptions, Learning Plan	ADR File, Decision Log, Rationale	Communication Canvas, Stakeholder Messages, Architecture Communication Plan	RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets
Tagsno overlap	AssumptionsRiskDecisionDiscovery	ArchitectureRationaleDocumentationGovernance	ArchitectureCommunicationStakeholdersCanvas	ArchitectureDecisionAsyncGovernance

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