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 Root Cause Tree Analysis |  Operations Failure Mode and Effects Analysis |  Operations Kaizen Event |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | 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 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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | 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. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-3 h | 2-6 h | 0.5-5 Tage | 30-60 min |
Participantsdifferent | 2-8 | 3-10 | 4-10 | 2-8 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | FMEA Table, Risk Priority, Mitigation Actions | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | Root causeTreeIncidentQuality | RiskQualityOperationsRoot cause | LeanContinuous improvementOperations | Root causeQualityOperations |