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| Criterion |  Decision Making Decision Matrix |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Request for Comments |  Delivery RAID Log |
|---|---|---|---|---|
Purposedifferent | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 1-3 Wochen vom Draft bis zur Entscheidung | 30 min Setup, dann laufend |
Participantsdifferent | 2-8 | Evaluation team, architects, and relevant stakeholders | 3-20 Reviewer | 1-3 maintaining, briefing for everyone |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Decision Matrix, Scoring Rationale, Selected Option | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | RAID Log, Status Report Source |
Tagsno overlap | DecisionCriteriaScoringTradeoffs | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureDecisionAsyncGovernance | RiskTrackingStakeholdersGovernance |