Logical Thinking ProcessA systems-based methodology that uses cause-and-effect logic to identify and solve complex problems by addressing root causes rather than symptoms.Goal TreeA hierarchical structure showing the goal at the top, supported by Critical Success Factors (CSFs) and their Necessary Conditions (NCs).Current Reality TreeA logical structure mapping cause-effect relationships between Undesirable Effects (UDEs) to identify root causes of problems.Evaporating CloudA logical diagram revealing hidden assumptions in conflicts and finding injections to resolve them.Future Reality TreeA projection of how proposed changes will create desired effects and address potential negative consequences.Prerequisite TreeA structured implementation plan addressing obstacles with intermediate objectives in logical sequence.GoalA clear, measurable statement of what must be achieved, written in present tense as if already accomplished.Critical Success FactorAn essential condition without which the goal cannot be achieved, even if all other factors are perfect.Necessary ConditionA specific requirement that must be met for a Critical Success Factor to be achieved.Undesirable EffectA negative condition currently existing in the system that stands in opposition to the goal.Root CauseThe fundamental source from which multiple Undesirable Effects originate.ConflictA situation where two necessary requirements appear to be in opposition to each other.AssumptionAn unstated belief about why certain connections in a conflict must exist.InjectionA solution that resolves a conflict by invalidating one or more assumptions.Desired EffectA positive outcome expected to result from implementing the injection.Negative BranchAn unintended negative consequence that might arise from implementing a solution.ObstacleA specific barrier that must be overcome for successful implementation.Intermediate ObjectiveA milestone that must be achieved to overcome a specific obstacle.