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Selected:Lean CoffeeSAAM (Software Architecture Analysis Method)Root Cause AnalysisRoot Cause Tree Analysis
| Criterion |  Facilitation Lean Coffee |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Root Cause Analysis |  Operations Root Cause Tree 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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 30-90 min | Preparation, scenario analysis, and findings review; effort depends on scope | 1-4 h | 1-3 h |
Participantsdifferent | 3-20 | Architecture experts and stakeholders for scenarios and weighting | 3-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Prioritized Topics, Discussion Notes, Action Items | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | FacilitationAutonomyDialogue | ArchitectureChangeAnalysisComparisonQuality | Root causeProblem solvingQualityIncident | Root causeTreeIncidentQuality |