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| Criterion | ![]() Innovation Double Diamond | ![]() Architecture Architecture Communication Canvas | ![]() Operations Root Cause Analysis | ![]() Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. | 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 | Medium | Medium | Medium | Low |
Timedifferent | Wochen bis Monate | 60-120 min | 1-4 h | 15-30 min |
Participantsdifferent | 3-12 | 2-8 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | ProcessDivergenceInnovation | ArchitectureCommunicationStakeholdersCanvas | Root causeProblem solvingQualityIncident | Root causeIncidentLeanProblem solving |



