Fishbone
Lay out the possible causes of one problem under a few headings, before anyone jumps to a fix. Tick the causes the team agrees to check first.
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STEP 1
One problem, stated as a fact. It goes in the fish’s head.
STEP 2
Possible causes
Up to 8 causes under each heading. Rename a heading by typing over its name. Paste a list into any box and each line becomes a cause.