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Selected:PERT EstimationArchitecture Inception CanvasATAM (Architecture Tradeoff Analysis Method)Software Architecture Canvas
| Criterion |  Decision Making PERT Estimation |  Architecture Architecture Inception Canvas |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Software Architecture Canvas |
|---|---|---|---|---|
Purposedifferent | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails. | 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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 15-45 min | 1-2 h | Several meetings plus preparation and analysis; total effort depends on scope | 1-2 h |
Participantsdifferent | 1-8 | 3-8 | Evaluation team, architects, and relevant stakeholders | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Inception Canvas, Risks, Goal List, Open Questions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Architecture Canvas, Goals, Constraints, Quality Attributes |
Tagsno overlap | EstimationUncertaintyRisk | AlignmentArchitectureCanvas | ArchitectureQualityRiskTradeoffsStakeholders | CanvasArchitectureAlignmentWorkshop |