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| Criterion |  Innovation How Might We |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Systems Thinking CATWOE Analysis |
|---|---|---|---|
Purposedifferent | With a stuck problem carrying many implicit assumptions, the method translates observations into open, workable questions. It sharpens the problem frame without pre-thinking the solution, turning frustration or fuzziness into a search space with clear direction. | 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. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30–45 min | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min |
Participantsdifferent | 1-10 | Evaluation team, architects, and relevant stakeholders | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | HMW Questions, Challenge Framing, Idea Prompts | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints |
Tagsno overlap | FramingOpportunityIdeationQuestions | ArchitectureQualityRiskTradeoffsStakeholders | Systems thinkingFramingStakeholders |
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