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| Criterion |  Innovation Double Diamond |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making DACI |  Decision Making Decision Rights Mapping |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | Wochen bis Monate | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 90-180 min |
Participantsdifferent | 3-12 | Evaluation team, architects, and relevant stakeholders | 2-10 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | DACI Matrix, Decision Owner, Decision Log | Decision Rights Matrix, Agreement |
Tagsno overlap | ProcessDivergenceInnovation | ArchitectureQualityRiskTradeoffsStakeholders | DecisionRolesGovernanceAlignment | DecisionGovernanceAlignmentResponsibility |