fishbone chart

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Fishbone chartclick for a larger image
Fig. 41 Fishbone chart. Simplified fishbone chart for draught beer. (Note: Fishbone charts are usually drawn horizontally).

fishbone chart

or

cause and effect chart

or

Ishikawa chart

a chart that breaks down the PRODUCTION of a product into its constituent operations as a means of identifying the source of a product defect. Fig. 41 shows a simplified fishbone chart for draught beer. Should a poor QUALITY batch of beer be produced this could be due to a malfunction in any one or more of the operations listed, including faulty or unclean equipment (mash mixers and filters, fermentation vessels), incorrect material mixes or poor strains of malt, hop or yeast, or incorrect boiling and cooling temperatures and periods. Fishbone charts can also be used more proactively to detect and prevent quality problems on a continuous basis as part of a commitment to TOTAL QUALITY MANAGEMENT. See QUALITY CONTROL, FIVE M.
References in periodicals archive ?
Although sophisticated tools are not a requirement at this stage, use of an application-specific tool--such as a diagram (also called a fishbone or Ishikawa chart) with the head describing the problem, and the major branches the groupings of potential causes--is beneficial, since it can be easily modified and disseminated (Figure 1).
The Ishikawa Chart (or fishbone diagram as it is sometimes known) is a tool used in this step to assist in determining the root causes of the problem.
* Cause and Effect or Ishikawa Charts. Often called fishbone charts because they resemble the skeleton of a fish, they are designed to identify all of those factors that can have an effect on the process under analysis.