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Selected:Lean CoffeeRACI MatrixATAM (Architecture Tradeoff Analysis Method)Failure Mode and Effects Analysis
| Criterion |  Facilitation Lean Coffee |  Operations RACI Matrix |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When a group without a fixed agenda needs to get into useful conversations quickly, Lean Coffee structures the start around interests rather than a presentation. The group itself negotiates which topics get time first and which wait. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | Low | High | High |
Timedifferent | 30-90 min | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 2-6 h |
Participantsdifferent | 3-20 | 2-8 | Evaluation team, architects, and relevant stakeholders | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Prioritized Topics, Discussion Notes, Action Items | RACI Matrix, Responsibility Map, Decision Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | FacilitationAutonomyDialogue | RolesResponsibilityGovernanceOperations | ArchitectureQualityRiskTradeoffsStakeholders | RiskQualityOperationsRoot cause |