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Selected:Future Reality Tree8D Problem SolvingSAAM (Software Architecture Analysis Method)Root Cause Analysis
| Criterion |  Systems Thinking Future Reality Tree |  Operations 8D Problem Solving |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | High | High | High | Medium |
Timedifferent | 2-4 h | 1-6 Wochen | Preparation, scenario analysis, and findings review; effort depends on scope | 1-4 h |
Participantsdifferent | 3-8 | 4-10 | Architecture experts and stakeholders for scenarios and weighting | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | 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 |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | QualityProblem solvingRoot cause | ArchitectureChangeAnalysisComparisonQuality | Root causeProblem solvingQualityIncident |