December 14, 2009 1:34am CST
Ishikawa diagrams were proposed by kaoru Ishikawa in the 1960's, who pioneered quality management processes in the kawasaki shipyards, and in the process became one of the modern management. It was first used in the 1960's, and is considered one of the seven basic tools of quality management, along with the histogram, Pareto chart, check sheet, flowchart, and scatter diagram. It is known as a fishbone diagram because of its shape, similar to the side view of a fish skeleton. Mazda Motors famously used an Ishikawa diagram in the development of the miata sports car, where the required result was "Jimba ittai" or "Horse and Rider as one.