Question
The 5 Whys framework can be used in conjunction with a fishbone diagram for problem-solving by using it to delve deeper into each potential cause identified in the fishbone diagram. Once the major categories of possible causes are identified and listed on the fishbone diagram, the 5 Whys framework can be used to ask why each potential problem exists. This process is repeated until the root cause of the problem is uncovered. This combination of tools allows for a comprehensive and thorough analysis of the problem at hand.
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Another tool to identify cause and effect is a fishbone diagram, also known as an Ishikawa diagram. In this diagram, the team first agrees on what the problem statement is. The spine of the fish connects to all the major categories of possible causes. These categories are usually "materials", "measurements", "method", "machine", "people", and "environment." Since these are broad buckets, most contributing factors will fit under one of these six bones, so list the possible factors in each possible cause category. In order to see beyond the obvious for deeper analysis, use the 5 whys framework to ask the "why" behind any of these potential problems until the root of the issue is uncovered. (Slide 13)
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