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The Classic Seven Quality Tools
INTRODUCTION
ere are many potential tools available to assist in root cause analysis
(RCA). e most well- known collection of tools is the seven quality tools
that were originally brought together by Kaoru Ishikawa. e tools were
intended for RCA performed by production personnel. ey are relatively
simple to use, yet highly eective as part of an RCA. e classic seven
quality tools are an essential part of any RCA tool kit.
ISHIKAWA DIAGRAM
e Ishikawa diagram or cause- and- eect diagram (Figure 10.1), also
known as a sh- bone diagram, was created by Kaoru Ishikawa to show
the potential causes that could ...