{"id":38436,"date":"2026-09-30T10:05:59","date_gmt":"2026-09-30T10:05:59","guid":{"rendered":"https:\/\/dev.accevo.com\/glossary\/what-is-statistical-process-control-spc\/"},"modified":"2026-09-30T10:09:05","modified_gmt":"2026-09-30T10:09:05","slug":"what-is-statistical-process-control-spc","status":"publish","type":"post","link":"https:\/\/accevo.com\/zh\/glossary\/what-is-statistical-process-control-spc\/","title":{"rendered":"What Is Statistical Process Control (SPC)?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Statistical Process Control (SPC) uses measurements over time to understand process variation and detect changes that may require investigation. A control chart plots data against a centre line and statistically derived control limits; patterns or points outside those limits can signal a process change. Control limits describe observed process behaviour and are different from product specification limits. SPC helps teams act on process evidence, but a stable process can still produce results outside customer specifications.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Related: <a href=\"https:\/\/accevo.com\/zh\/%e6%a8%a1%e5%9d%97\/%e8%b4%a8%e9%87%8f%e6%a3%80%e6%9f%a5\/\">\u8d28\u91cf\u68c0\u67e5<\/a> \u00b7 <a href=\"https:\/\/accevo.com\/zh\/%e8%af%8d%e6%b1%87%e8%a1%a8\/what-is-quality-sampling\/\">quality sampling<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>SPC uses process data and control charts to distinguish routine variation from signals that need investigation.<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"wpai_generated_summary":"","footnotes":""},"categories":[32],"tags":[],"class_list":["post-38436","post","type-post","status-publish","format-standard","hentry","category-glossary"],"_links":{"self":[{"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/posts\/38436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/comments?post=38436"}],"version-history":[{"count":0,"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/posts\/38436\/revisions"}],"wp:attachment":[{"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/media?parent=38436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/categories?post=38436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/accevo.com\/zh\/wp-json\/wp\/v2\/tags?post=38436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}