Current reality tree (theory of constraints): Difference between revisions

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[[Image:CurrentRealityTree_Example.png|thumb|right|Current Reality Tree example]]

A CRT begins with a list of problems, known as undesirable effects (UDEs.) These are assumed to be symptoms of a deeper common cause. To take a somewhat frivolous example, a car owner may have the following UDEs:

::1.# the engine won't start

::2.# the air conditioning isn't working

::3.# the car's radio sounds distorted.

The CRT is constructed by:

::A)* attempting to link any two UDEs using a chain of cause-and-effect reasoning

::B)* elaborating the reasoning to ensure it is sound and plausible

::C)* linking each of the remaining UDEs to the existing tree by repeating the previous steps.

This approach tends to converge on onea or two commonsingle root causescause. In the illustrated case, the root cause of the above UDEs is seen as being a faulty handbrake.

==See also==