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 Family Tree Analysis |  Innovation TRIZ |
|---|---|---|---|
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 series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 15-30 min | 2-4 h | 1-4 h |
Participantsdifferent | 2-6 | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Family Tree Diagram, Pattern Notes, Systemic Measures | Contradiction Statement, Inventive Principles, Solution Concepts |
Tagsno overlap | Root causeIncidentLeanProblem solving | Root causePatternsIncidentSystemic | InnovationProblem solvingContradictionsCreativity |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
