{"id":227,"date":"2012-05-10T14:37:58","date_gmt":"2012-05-10T18:37:58","guid":{"rendered":"http:\/\/markkirkwood.com\/?p=227"},"modified":"2012-05-11T11:12:27","modified_gmt":"2012-05-11T15:12:27","slug":"the-seven-basic-tools-of-quality-control","status":"publish","type":"post","link":"https:\/\/blog.markkirkwood.com\/?p=227","title":{"rendered":"The seven basic tools of quality control"},"content":{"rendered":"<p>Further to my comment on the Crosby Quality College in the last post, here are the basic quality tools\u00a0any manager should be aware of (regardless of your function):<\/p>\n<ul>\n<li>The cause-and-effect (a.k.a., &#8220;fishbone&#8221; or\u00a0<a title=\"Ishikawa diagram\" href=\"http:\/\/en.wikipedia.org\/wiki\/Ishikawa_diagram\">Ishikawa diagram<\/a>)<\/li>\n<li>The\u00a0<a title=\"Check sheet\" href=\"http:\/\/en.wikipedia.org\/wiki\/Check_sheet\">check sheet<\/a><\/li>\n<li>The\u00a0<a title=\"Control chart\" href=\"http:\/\/en.wikipedia.org\/wiki\/Control_chart\">control chart<\/a><\/li>\n<li>The\u00a0<a title=\"Histogram\" href=\"http:\/\/en.wikipedia.org\/wiki\/Histogram\">histogram<\/a><\/li>\n<li>The\u00a0<a title=\"Pareto chart\" href=\"http:\/\/en.wikipedia.org\/wiki\/Pareto_chart\">Pareto chart<\/a><\/li>\n<li>The\u00a0<a title=\"Scatter diagram\" href=\"http:\/\/en.wikipedia.org\/wiki\/Scatter_diagram\">scatter diagram<\/a><\/li>\n<li><a title=\"Stratified sampling\" href=\"http:\/\/en.wikipedia.org\/wiki\/Stratified_sampling\">Stratification<\/a>\u00a0(alternately,\u00a0<a title=\"Flow chart\" href=\"http:\/\/en.wikipedia.org\/wiki\/Flow_chart\">flow chart<\/a>\u00a0or\u00a0<a title=\"Run chart\" href=\"http:\/\/en.wikipedia.org\/wiki\/Run_chart\">run chart<\/a>)<\/li>\n<\/ul>\n<p>To this day, axis still uses the &#8220;fishbone&#8221; diagram on many projects\u2014it is a universal tool for discovery, mapping, analysis, etc.<\/p>\n<p>As an aside, <em>histograms<\/em> are a great tool to use for presenting a set of sales or marketing data&#8230; Histograms are easy to make, but if they\u2019re going to be representative of the data, the size of the bins has to be reasonable. Bins that are to narrow make the data set look less regular than it is; bins that are too wide throw away information and are biased away from the underlying density function at the edges of the bins.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Further to my comment on the Crosby Quality College in the last post, here are the basic quality tools\u00a0any manager should be aware of (regardless of your function): The cause-and-effect (a.k.a., &#8220;fishbone&#8221; or\u00a0Ishikawa diagram) The\u00a0check sheet The\u00a0control chart The\u00a0histogram The\u00a0Pareto chart The\u00a0scatter diagram Stratification\u00a0(alternately,\u00a0flow chart\u00a0or\u00a0run chart) To this day, axis still uses the &#8220;fishbone&#8221; diagram [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[11],"class_list":["post-227","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-lists"],"_links":{"self":[{"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=\/wp\/v2\/posts\/227","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=227"}],"version-history":[{"count":0,"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=\/wp\/v2\/posts\/227\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.markkirkwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}