{"id":236,"date":"2011-06-07T14:41:08","date_gmt":"2011-06-07T13:41:08","guid":{"rendered":"http:\/\/www.clearsy.com\/?p=236"},"modified":"2021-07-05T14:14:18","modified_gmt":"2021-07-05T12:14:18","slug":"the-formal-methods-in-the-operational-safety-process-2","status":"publish","type":"post","link":"https:\/\/www.clearsy.com\/en\/safety\/the-formal-methods-in-the-operational-safety-process-2\/","title":{"rendered":"The formal methods in the Operational Safety process"},"content":{"rendered":"<h3>The formal methods :<\/h3>\n<p>Allow to define mathematically and rigorously the properties of operation of a system. Formal methods may apply to any stage of development of a project, as well from the specification phase to the phase of implementation.<\/p>\n<h3>The operational safety :<\/h3>\n<p>aims to ensure, with a certain level of confidence, the impossibility of dangerous behavior of a system or equipment. In other words, this \u00abinsurance for the proper functioning \u00bb requires clear and strict operation control of the system or equipment.<\/p>\n<p>Thus, formal methods, highly recommended at the beginning of the development cycle of a system, like in the stages of specification of the safety properties of a system with high integrity level (SIL4 for EN 61508 and SIL3 SIL4 to EN 50128), make the process of operational safety with safety requirements specified in a structured way clear, precise, unambiguous, verifiable, testable, maintainable, and free of ambiguous terms or description and \/ or likely to be misunderstood by the users of the document to all stages of development.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The formal methods : Allow to define mathematically and rigorously the properties of operation of a system. Formal methods may [&hellip;]<\/p>\n","protected":false},"author":21,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1536],"tags":[],"class_list":["post-236","post","type-post","status-publish","format-standard","hentry","category-safety"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The formal methods in the Operational Safety process - CLEARSY<\/title>\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.clearsy.com\/en\/safety\/the-formal-methods-in-the-operational-safety-process-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The formal methods in the Operational Safety process - CLEARSY\" \/>\n<meta property=\"og:description\" content=\"The formal methods : Allow to define mathematically and rigorously the properties of operation of a system. 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