Seven basic tools of quality: Difference between revisions

Revision as of 21:35, 13 January 2019

Revision as of 04:30, 30 March 2019

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==Overview==

The seven tools are:{{sfn|Tague|2005|p=15}}<ref>{{harvnb|Ishikawa|1985|p=198|ps=: "Elementary Statistical Method (the so-called Seven Tools) 1. Pareto chart: The principle of vital few; trivial many 2. Cause and effect diagram (This is not precisely a statistical technique) 3. Stratification 4. Check sheet 5. Histogram. 6. Scatter diagram (analysis of correlation through determination of median; in some instances, use of binomial probability paper) 7. Graph and control chart (Shewhart control chart)".}}</ref>{{sfn|Imai|1986|pp=239–240|ps=: "The seven statistical tools used for such analytical problem-solving are: 1. Pareto diagrams&nbsp;... 2. Cause-and-effect diagrams&nbsp;... 3. Histograms&nbsp;... 4. Control charts&nbsp;... 5. Scatter diagrams&nbsp;... 6. Graphs&nbsp;... 7. Checksheets."}}

#[[Check sheet]] kughy 6ujiny 88hujhiny

#[[Control chart]]

#[[Stratified sampling|Stratification]] (alternately, [[flow chart]] or [[run chart]])