Seven basic tools of quality: Difference between revisions

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The '''SEVENSeven BASICBasic TOOLSTools OFof QUALITY that defineQuality''' is a designation given to a fixed set of graphical techniques identified as being most helpful in [[troubleshooting]] issues related to [[Quality (business)|quality]].<ref>{{cite book | last = Montgomery | first = Douglas | title = Introduction to Statistical Quality Control | publisher = [[John Wiley & Sons]], Inc. | date = 2005 | ___location = [[Hoboken, New Jersey]] | pages = 148 | url = http://www.eas.asu.edu/~masmlab/montgomery/ | isbn = 978-0-471-65631-9 | oclc = 56729567}}</ref> They are called ''basic'' because they are suitable for people with little formal training in statistics and because they can be used to solve the vast majority of quality-related issues.<ref>{{Citation | last = Ishikawa | first = Kaoru | authorlink = Kaoru Ishikawa | title = What Is Total Quality Control? The Japanese Way | edition = 1 | year = 1985 | publisher = [[Prentice-Hall]] | ___location = [[Englewood Cliffs, New Jersey]] | isbn = 978-0-13-952433-2 | oclc = 11467749 | page = 198 | quote = From my past experience as much as ninetey-five percent of all problems within a company can be solved by means of these tooltools.}}</ref>

The seven tools are:<ref>{{cite web | url = http://www.asq.org/learn-about-quality/seven-basic-quality-tools/overview/overview.html | author = Nancy R. Tague | title = Seven Basic Quality Tools | year = 2004 | work = The Quality Toolbox | publisher = [[American Society for Quality]] | ___location = [[Milwaukee, Wisconsin]] | page = 15 | accessdate = 2010-02-05}}</ref><ref>{{Citation | last = Ishikawa | first = Kaoru | authorlink = Kaoru Ishikawa | title = What Is Total Quality Control? The Japanese Way | edition = 1 | year = 1985 | publisher = [[Prentice-Hall]] | ___location = [[Englewood Cliffs, New Jersey]] | isbn = 978-0-13-952433-2 | oclc = 11467749 | page = 198 | quote = 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><ref>{{Citation | last = Imai | first = Masaaki | authorlink = Masaaki Imai | title = Kaizen (Ky'zen), the Key to Japan's Competitive Success | edition = 1 | year = 1986 | publisher = [[Random House]] | ___location = [[New York City|New York]] | isbn = 9780394551869 | oclc = 13010323 | pages = 239–240 | quote = The seven statistical tools used for such analytical problem-solving are: 1. Pareto diagrams [...] 2. Cause-and-effect diagrams [...] 3. Histograms [...] 4. Control charts [...] 5. Scatter diagrams [...] 6. Graphs [...] 7. Checksheets.}}</ref>