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 5 Whys |  Operations Root Cause Tree Analysis |  Operations Change Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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 deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-30 min | 1-3 h | 45-120 min |
Participantsdifferent | 2-6 | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Cause Tree, Evidence Notes, Countermeasures | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tags1 shared | Root causeIncidentLeanProblem solving | Root causeTreeIncidentQuality | ChangeRoot causeTroubleshootingComparison |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
