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Selected:Gemba WalkFishbone DiagramATAM (Architecture Tradeoff Analysis Method)Standard Work Analysis
| Criterion |  Operations Gemba Walk |  Operations Fishbone Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Standard Work Analysis |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 30-120 min | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope | 1-3 h |
Participantsdifferent | 2-6 | 2-8 | Evaluation team, architects, and relevant stakeholders | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Fishbone Diagram, Cause Categories, Investigation Backlog | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Standard Work Sheet, Deviation List, Improved Standard, Training Needs |
Tagsno overlap | LeanObservationProcessOperations | Root causeQualityOperations | ArchitectureQualityRiskTradeoffsStakeholders | LeanProcessQuality |