That score represents its impact on the Effect (Y). The PM assigns numbers to each input and attempts to objectively score each "cause". Be careful how many are transferred to the PM because each input is weighed (scored by the team) in the PM phase and a lot of inputs could take a lot of time to score. The next tool called a Prioritization Matrix (PM) which is also sometimes called a C ause & Effect Matrix or Correlation Matrix will start the screening process (aka the funneling process) to filter out the trivial inputs.ĭuplicates x's are removed from the Fishbone Diagram and the remaining Controllable inputs are inserted into a Prioritization Matrix (PM).ĬAUTION: There could be 10-20 or there could be hundreds. It is not important to weigh these inputs at this time, more importantly get all inputs documented and keep opinions and judgments from interfering. Many pro cess steps may share the same inputs (x's) but the Fishbone Diagram is done individually for each step and for each category to help capture ALL inputs before proceeding. In this case many inputs occur to both "Y's but there will be many inputs that must be identified that will only apply to one or another.
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