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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Growth Funnel Analysis |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | 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. | When many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | High | Medium | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-3 h | 15-30 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-5 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Funnel report, Drop-off analysis, Optimization hypotheses | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | AnalyticsConversionGrowth | Root causeIncidentLeanProblem solving |
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