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| Criterion |  Decision Making Constraint Analysis |  Architecture Architecture Communication Canvas |  Architecture Request for Comments |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 30-90 min | 60-120 min | 1-3 Wochen vom Draft bis zur Entscheidung | 1-2 Tage |
Participantsdifferent | 2-8 | 2-8 | 3-20 Reviewer | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ConstraintsDecisionPlanningOptions | ArchitectureCommunicationStakeholdersCanvas | ArchitectureDecisionAsyncGovernance | ArchitectureDocumentationCommunication |