View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations DMAIC |  Business Strategy Value Chain Analysis |  Operations Root Cause Tree Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | High | High | Medium | Low |
Timedifferent | 2-12 Wochen | Half day | 1-3 h | 15-30 min |
Participantsdifferent | 3-10 | 3-8 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Value Chain Map, Lever List | Cause Tree, Evidence Notes, Countermeasures | Root cause notes, Countermeasures |
Tagsno overlap | Continuous improvementQualityProcess improvement | StrategyBusiness modelDiagnosisAnalysis | Root causeTreeIncidentQuality | Root causeIncidentLeanProblem solving |