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| Criterion |  Decision Making Constraint Analysis |  Systems Thinking Future Reality Tree |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30-90 min | 2-4 h | 2-4 h |
Participantsdifferent | 2-8 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ConstraintsDecisionPlanningOptions | Theory of ConstraintsSystems thinkingChange | Root causeSafetyIncident |
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