{"id":43541,"date":"2014-07-14T15:56:14","date_gmt":"2014-07-14T10:26:14","guid":{"rendered":"http:\/\/www.vskills.in\/certification\/tutorial\/?p=43541"},"modified":"2024-04-12T14:19:50","modified_gmt":"2024-04-12T08:49:50","slug":"six-sigma-green-belt-process-capability-2","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/","title":{"rendered":"Six Sigma Green Belt Tutorial | Process Capability"},"content":{"rendered":"<h1>Six Sigma Green Belt<\/h1>\n<h2>Process Capability<\/h2>\n<p>The <b>Process Capability<\/b> is a measurable property of a process to the specification, expressed as a process capability index (e.g., <strong>C<sub>pk<\/sub><\/strong> or <strong>C<sub>pm<\/sub>)<\/strong> or as a process performance index (e.g., <strong>P<sub>pk<\/sub><\/strong> or <strong>P<sub>pm<\/sub>).<\/strong> The output of this measurement is usually illustrated by a histogram and calculations that predict how many parts will be produced out of specification (OOS).<\/p>\n<p><em>Two parts of process capability are &#8211;<\/em><\/p>\n<p>1) Measure the variability of the output of a process,<\/p>\n<p>2) Compare that variability with a proposed specification or product tolerance.<\/p>\n<p>Process capability is a predictable pattern of statistically stable behavior where the chance causes of variation are compared to the engineering specifications.<\/p>\n<p><strong>Process Capability Studies<\/strong><br \/>\nA process capability study attempts to quantify whether a process can consistently meet the standards set by internal or external customers.<\/p>\n<p><strong>Study Procedure<\/strong> \u2013 It includes various steps, as<\/p>\n<ul>\n<li>Select a process to study which is critical and can be selected using several techniques like a Pareto analysis or a cause-and-effect diagram.<br \/>\nVerify or define the process parameters. Verification of what the process entails, its boundaries, and gain agreement on the process\u2019s definition. Many of these steps are completed when developing a process map.<\/li>\n<li>Conduct a measurement systems analysis to ensure that the measurement methods produce sound data.<\/li>\n<li>Select a process capability analysis method like <strong>Cpk, Cp, Ppk and Pp.<\/strong><\/li>\n<li>Obtain the data and conduct an analysis.<\/li>\n<li>Develop an estimate of the process capability. This estimate can be compared to the standards set by internal or external customers.<\/li>\n<\/ul>\n<p><strong>Identifying Characteristics<\/strong><\/p>\n<p>Characteristics selected to be part of a process capability study should meet certain requirements<\/p>\n<p><strong>Identifying Specifications\/Tolerances<\/strong><br \/>\nThe process specifications or tolerances are determined either by customer requirements, industry standards, or the organization\u2019s engineering department.<\/p>\n<p><strong>Developing Sampling Plans<\/strong><br \/>\nFor new processes, for example for a project proposal, a pilot run may be used to estimate the process capability.<\/p>\n<p><strong>Specification Limits<\/strong><br \/>\nSpecification limits are set by the customer, and result from either customer requirements or industry standards.<\/p>\n<p><strong>Verifying Stability and Normality<\/strong><br \/>\nIf only common causes of variation are present in a process, then the output of the process forms a distribution that is stable over time and is predictable.<\/p>\n<p><strong>Process capability indices<\/strong><br \/>\nIt includes Cp and Cpk, who identify the current state of the process and provide statistical evidence for comparing after-adjustment results to the starting point.<\/p>\n<ul>\n<li><strong>Cp<\/strong> \u2013 It measures the ratio between the specification tolerance (USL-LSL) and process spread.<\/li>\n<li><strong>Cpk<\/strong> \u2013 It measures the absolute distance of the mean to the nearest specification limit.<\/li>\n<li><strong>Cpm<\/strong> &#8211; It is also referred to as the Taguchi index. It is more accurate and reliable than the other indices. It focuses on reducing the variation from a target value (T).<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.vskills.in\/practice\/startPracticeTest\/Six-Sigma-Green-Belt-Mock-Test\"><strong>Take Free Mock Test on Six Sigma Green Belt<\/strong> <\/a><\/p>\n<p><strong>Apply for Certification Exam !!<\/strong><\/p>\n<p><a href=\"https:\/\/www.vskills.in\/certification\/quality\/certified-six-sigma-green-belt-professional\"><strong>Certified Six Sigma Green Belt Professional<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Six Sigma Green Belt Process Capability The Process Capability is a measurable property of a process to the specification, expressed as a process capability index (e.g., Cpk or Cpm) or as a process performance index (e.g., Ppk or Ppm). The output of this measurement is usually illustrated by a histogram and calculations that predict how&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[6304],"tags":[6886,6868,6867,6871],"class_list":["post-43541","page","type-page","status-publish","hentry","category-six-sigma-green-belt","tag-business-results","tag-green-belt","tag-six-sigma","tag-tutorials"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Six Sigma Green Belt Tutorial | Process Capability<\/title>\n<meta name=\"description\" content=\"The Process Capability is a measurable property of a process to the specification, expressed as a process capability index (e.g., Cpk or Cpm)\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Six Sigma Green Belt Tutorial | Process Capability\" \/>\n<meta property=\"og:description\" content=\"The Process Capability is a measurable property of a process to the specification, expressed as a process capability index (e.g., Cpk or Cpm)\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Tutorial\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/vskills.in\/\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-12T08:49:50+00:00\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/\",\"url\":\"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/\",\"name\":\"Six Sigma Green Belt Tutorial | Process Capability\",\"isPartOf\":{\"@id\":\"https:\/\/www.vskills.in\/certification\/tutorial\/#website\"},\"datePublished\":\"2014-07-14T10:26:14+00:00\",\"dateModified\":\"2024-04-12T08:49:50+00:00\",\"description\":\"The Process Capability is a measurable property of a process to the specification, expressed as a process capability index (e.g., Cpk or Cpm)\",\"breadcrumb\":{\"@id\":\"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.vskills.in\/certification\/tutorial\/six-sigma-green-belt-process-capability-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.vskills.in\/certification\/tutorial\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Six Sigma Green Belt Tutorial | Process Capability\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.vskills.in\/certification\/tutorial\/#website\",\"url\":\"https:\/\/www.vskills.in\/certification\/tutorial\/\",\"name\":\"Tutorial\",\"description\":\"Vskills - 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