View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:Competency QuestionsQuality Attribute WorkshopRisk StormingATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Knowledge Modeling Competency Questions |  Architecture Quality Attribute Workshop |  Architecture Risk Storming |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | Competency Questions translate a domain model into concrete questions that it must be able to answer. The method keeps the model's scope clean and prevents pretty but useless structures. | A Quality Attribute Workshop translates quality requirements into concrete scenarios and architecture impulses. The method brings product, engineering, and operations to the same view of desired properties. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 2-4 h | 2-4 h | 60-90 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 2-8 | 5-15 | 4-12 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | Quality Scenarios, Priority List, Architecture Concerns | Annotated Diagram, Prioritized Risk List, Action Backlog | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | OntologyKnowledge graphScopeRequirementsSemantic | RequirementsArchitectureWorkshop | RiskArchitectureWorkshopValidation | ArchitectureQualityRiskTradeoffsStakeholders |