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Current reality tree (Theory of constraints)
One of the thinking processes in the theory of constraints, a current reality tree (CRT) is a way of analyzing many systems or organizational problems at once. By identifying root causes common to most or all of the problems, a CRT can greatly aid focused improvement of the system. A current reality tree is a directed graph.
==Simplified explanation==
A CRT is a focusing procedure formulated by the late Eliyahu Goldratt, inventor of the theory of constraints. This process uses time-tested rules of logic to help leaders - in a few brief, but intensive sessions - gain a deep understanding about what really matters in any given situation. It treats multiple problems in a system as symptoms arising from one or a few ultimate root causes or systemic core problems. It describes, in a simple visual (cause-and-effect network) diagram, the main perceived symptoms (along with secondary or hidden ones that lead up to the perceived symptoms) of a problem scenario and ultimately the apparent root causes or core conflict. The benefit of building a CRT is that it is much easier to identify the connections or dependencies between perceived symptoms (effects) and root causes (core problems or conflicts). If core problems, for example in complex situations or crises, are identified, prioritized, and tackled well, multiple undesirable effects in the system will disappear. Thus, leaders may then focus on the bits, the few core problems, which would cause the biggest positive systemic changes, if tackled.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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