{"id":10056,"date":"2022-01-26T01:22:09","date_gmt":"2022-01-26T01:22:09","guid":{"rendered":"https:\/\/www.cybermedian.com\/fr\/?p=10056"},"modified":"2026-04-20T09:13:23","modified_gmt":"2026-04-20T09:13:23","slug":"analyse-par-arbre-de-defaillances-fta-arme-secrete-pour-lanalyse-des-causes-profondes","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/fr\/fault-tree-analysis-fta-secret-weapon-for-root-cause-analysis\/","title":{"rendered":"Analyse par arbre de d\u00e9faillances (FTA) \u2014 Arme secr\u00e8te pour l&#8217;analyse des causes profondes"},"content":{"rendered":"<p id=\"c5fa\" class=\"graf graf--p graf-after--h3\">L&#8217;analyse par arbre de d\u00e9faillances est l&#8217;une des m\u00e9thodes les plus couramment utilis\u00e9es dans l&#8217;analyse de la fiabilit\u00e9 des syst\u00e8mes.\u00a0C&#8217;est un processus de conception ou d&#8217;am\u00e9lioration du syst\u00e8me en analysant divers facteurs pouvant entra\u00eener une d\u00e9faillance du syst\u00e8me, notamment le mat\u00e9riel, les logiciels, l&#8217;environnement, les facteurs humains, etc. En dessinant l&#8217;arbre de d\u00e9faillance, nous pouvons d\u00e9terminer les combinaisons possibles de modes et la probabilit\u00e9 de la cause de la panne du syst\u00e8me.\u00a0La probabilit\u00e9 de d\u00e9faillance du syst\u00e8me est calcul\u00e9e et les mesures correspondantes sont prises.<\/p>\n<p id=\"aa4a\" class=\"graf graf--p graf-after--p\">FTA est une analyse de conception et des m\u00e9thodes d&#8217;\u00e9valuation pour am\u00e9liorer la fiabilit\u00e9 du syst\u00e8me.\u00a0Il est souvent utilis\u00e9 dans le processus Six Sigma, en particulier dans la phase d&#8217;analyse du processus d&#8217;am\u00e9lioration commerciale Six Sigma.<\/p>\n<h3 id=\"a88a\" class=\"graf graf--h3 graf-after--p\"><span id=\"How_to_perform_fault_tree_analysis\">Comment effectuer une analyse d&#8217;arbre de d\u00e9faillances<\/span><\/h3>\n<p id=\"1330\" class=\"graf graf--p graf-after--h3\">Supposons que vous disposiez d&#8217;une arborescence d&#8217;analyse des d\u00e9faillances du syst\u00e8me de base de donn\u00e9es qui commence par une d\u00e9faillance de la base de donn\u00e9es et analyse les facteurs susceptibles de provoquer des d\u00e9faillances de la base de donn\u00e9es et des applications.<\/p>\n<p id=\"606b\" class=\"graf graf--p graf-after--p\">L&#8217;analyse de l&#8217;arbre de d\u00e9faillance est un processus d&#8217;\u00e9puisement des causes de d\u00e9faillance.\u00a0Il s&#8217;agit d&#8217;une analyse descendante o\u00f9 nous commen\u00e7ons par les sympt\u00f4mes, prenons un bus manqu\u00e9 comme exemple, puis listons les causes possibles de mani\u00e8re hi\u00e9rarchique en formant une structure arborescente.\u00a0L&#8217;arborescence des noms provient des diff\u00e9rentes branches qui peuvent provoquer des sympt\u00f4mes.<\/p>\n<figure id=\"6207\" class=\"graf graf--figure graf-after--p\"><a href=\"https:\/\/online.visual-paradigm.com\/repository\/images\/6cdecc47-eb89-45ce-9190-312a4cd346b2\/infographics-design\/benefits-and-harms-of-coffee-infographic.png?s=360\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0_JEI18w7qS9fIk-q.png\" data-image-id=\"0*_JEI18w7qS9fIk-q.png\" data-width=\"904\" data-height=\"822\" data-is-featured=\"true\" \/><\/a><\/figure>\n<h3 id=\"da95\" class=\"graf graf--h3 graf-after--figure\"><span id=\"FTA_Notation\">Notation ALE<\/span><\/h3>\n<p id=\"20d3\" class=\"graf graf--p graf-after--h3\">Une analyse d&#8217;arbre de d\u00e9faillance utilise quelques symboles de base pour d\u00e9crire divers points, causes et effets dans un processus.\u00a0Il existe de nombreux symboles, mais voici quelques \u00e9l\u00e9ments de base pour vous aider \u00e0 commencer \u00e0 concevoir un diagramme d&#8217;arbre de d\u00e9faillances.<\/p>\n<p id=\"23c2\" class=\"graf graf--p graf-after--p\">Les symboles sont utilis\u00e9s pour repr\u00e9senter divers \u00e9v\u00e9nements et d\u00e9crire des relations\u00a0:<\/p>\n<h3 id=\"6c14\" class=\"graf graf--h3 graf-after--p\"><span id=\"Gate_Symbols\">Symboles de porte<\/span><\/h3>\n<figure id=\"4c74\" class=\"graf graf--figure graf-after--h3\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0gPoI1_erR4n2prGX.png\" data-image-id=\"0*gPoI1_erR4n2prGX.png\" data-width=\"91\" data-height=\"91\" \/><\/figure>\n<p id=\"d35c\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Et porte<\/strong>\u00a0\u200a\u2014 repr\u00e9sente une condition dans laquelle tous les \u00e9v\u00e9nements affich\u00e9s sous la porte (porte d&#8217;entr\u00e9e) doivent \u00eatre pr\u00e9sents pour que l&#8217;\u00e9v\u00e9nement affich\u00e9 au-dessus de la porte (\u00e9v\u00e9nement de sortie) se produise.\u00a0Cela signifie que l&#8217;\u00e9v\u00e9nement de sortie ne se produira que si tous les \u00e9v\u00e9nements d&#8217;entr\u00e9e existent simultan\u00e9ment.<\/p>\n<figure id=\"7b3b\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0JJ4IaSGGIXpCcndq.png\" data-image-id=\"0*JJ4IaSGGIXpCcndq.png\" data-width=\"91\" data-height=\"101\" \/><\/figure>\n<p id=\"9267\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Ou porte<\/strong>\u00a0\u200a\u2014 repr\u00e9sente une situation dans laquelle l&#8217;un des \u00e9v\u00e9nements affich\u00e9s sous la porte (porte d&#8217;entr\u00e9e) conduira \u00e0 l&#8217;\u00e9v\u00e9nement affich\u00e9 au-dessus de la porte (\u00e9v\u00e9nement de sortie).\u00a0L&#8217;\u00e9v\u00e9nement se produira s&#8217;il n&#8217;existe qu&#8217;un seul ou une combinaison des \u00e9v\u00e9nements d&#8217;entr\u00e9e.<\/p>\n<h3 id=\"7077\" class=\"graf graf--h3 graf-after--p\"><span id=\"Event_symbols\">Symboles d&#8217;\u00e9v\u00e9nement<\/span><\/h3>\n<p id=\"6f6d\" class=\"graf graf--p graf-after--h3\">Il existe cinq types de symboles d&#8217;\u00e9v\u00e9nement\u00a0:<\/p>\n<figure id=\"f0d6\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0awHUVD2NbC3EhQqZ.png\" data-image-id=\"0*awHUVD2NbC3EhQqZ.png\" data-width=\"103\" data-height=\"70\" \/><\/figure>\n<p id=\"5b77\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Rectangle<\/strong>\u00a0\u200a\u2014 Le rectangle est le bloc de construction principal de l&#8217;arbre analytique.\u00a0Il repr\u00e9sente l&#8217;\u00e9v\u00e9nement n\u00e9gatif et est situ\u00e9 au sommet de l&#8217;arbre et peut \u00eatre situ\u00e9 dans tout l&#8217;arbre pour indiquer d&#8217;autres \u00e9v\u00e9nements susceptibles d&#8217;\u00eatre d\u00e9compos\u00e9s davantage.\u00a0C&#8217;est le seul symbole qui aura une porte logique et des \u00e9v\u00e9nements d&#8217;entr\u00e9e en dessous.<\/p>\n<figure id=\"35b9\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0LjzJtQbTPkwrepR0.png\" data-image-id=\"0*LjzJtQbTPkwrepR0.png\" data-width=\"91\" data-height=\"91\" \/><\/figure>\n<p id=\"10ce\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Cercle<\/strong>\u00a0\u200a\u2014 Un cercle repr\u00e9sente un \u00e9v\u00e9nement de base dans l&#8217;arborescence.\u00a0Ceux-ci se trouvent sur les niveaux inf\u00e9rieurs de l&#8217;arbre et ne n\u00e9cessitent aucun d\u00e9veloppement ou panne suppl\u00e9mentaire.\u00a0Il n&#8217;y a pas de portes ou d&#8217;\u00e9v\u00e9nements en dessous de l&#8217;\u00e9v\u00e9nement de base.<\/p>\n<figure id=\"e522\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0QTBjxnMrlzGNPpWb.png\" data-image-id=\"0*QTBjxnMrlzGNPpWb.png\" data-width=\"118\" data-height=\"101\" \/><\/figure>\n<p id=\"128d\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Diamant<\/strong>\u00a0\u200a\u2014 Le losange identifie un \u00e9v\u00e9nement terminal non d\u00e9velopp\u00e9.\u00a0Un tel \u00e9v\u00e9nement n&#8217;est pas pleinement d\u00e9velopp\u00e9 en raison d&#8217;un manque d&#8217;information ou de signification.\u00a0Une branche d&#8217;arbre de d\u00e9faillances peut se terminer par un losange.\u00a0Par exemple, la plupart des projets n\u00e9cessitent du personnel, des proc\u00e9dures et du mat\u00e9riel.\u00a0Le d\u00e9veloppeur de l&#8217;arbre peut d\u00e9cider de se concentrer sur l&#8217;aspect personnel de la proc\u00e9dure et non sur les aspects mat\u00e9riels ou proc\u00e9duraux.\u00a0Dans ce cas, le d\u00e9veloppeur utiliserait des losanges pour afficher les &#8220;proc\u00e9dures&#8221; et le &#8220;mat\u00e9riel&#8221; comme des \u00e9v\u00e9nements terminaux non d\u00e9velopp\u00e9s.<\/p>\n<figure id=\"30bc\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0obhk2nIt-lMQnbSu.png\" data-image-id=\"0*obhk2nIt-lMQnbSu.png\" data-width=\"91\" data-height=\"71\" \/><\/figure>\n<p id=\"6163\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Ovale<\/strong>\u00a0\u200a\u2014 Un symbole ovale repr\u00e9sente une situation particuli\u00e8re qui ne peut se produire que si certaines circonstances se produisent.\u00a0Ceci est \u00e9nonc\u00e9 dans le symbole ovale.\u00a0Un exemple de ceci pourrait \u00eatre si des commutateurs doivent \u00eatre lanc\u00e9s dans une s\u00e9quence sp\u00e9cifique avant qu&#8217;une action n&#8217;ait lieu.<\/p>\n<figure id=\"b9f2\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0roGJGiYnAulWOymD.png\" data-image-id=\"0*roGJGiYnAulWOymD.png\" data-width=\"91\" data-height=\"75\" \/><\/figure>\n<p id=\"dd6e\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Triangle<\/strong>\u00a0\u200a\u2014 Le triangle signifie un transfert d&#8217;une branche d&#8217;arbre de d\u00e9faillances vers un autre emplacement dans l&#8217;arbre.\u00a0Lorsqu&#8217;un triangle se connecte \u00e0 l&#8217;arbre avec une fl\u00e8che, tout ce qui est affich\u00e9 sous le point de connexion est transf\u00e9r\u00e9 vers une autre zone de l&#8217;arbre.\u00a0Cette zone est identifi\u00e9e par un triangle correspondant qui est reli\u00e9 \u00e0 l&#8217;arbre par une ligne verticale.\u00a0Des lettres, des chiffres ou des chiffres identifient un ensemble de symboles de transfert d&#8217;un autre.\u00a0Pour conserver la simplicit\u00e9 de l&#8217;arbre analytique, le symbole de transfert doit \u00eatre utilis\u00e9 avec parcimonie.<\/p>\n<h3 id=\"d5b1\" class=\"graf graf--h3 graf-after--p\"><span id=\"Fault_Tree_Diagram_Example_Light_cannot_turn_on\">Exemple de diagramme d&#8217;arbre de d\u00e9faillances \u2014 La lumi\u00e8re ne peut pas s&#8217;allumer<\/span><\/h3>\n<p id=\"ad89\" class=\"graf graf--p graf-after--h3\">Examinons un exemple d&#8217;analyse d&#8217;arbre de d\u00e9faillances de base\u00a0: vous actionnez un interrupteur pour allumer une lumi\u00e8re, mais la lumi\u00e8re ne s&#8217;allume pas.\u00a0La condition de panne est &#8220;Pas de lumi\u00e8re dans la pi\u00e8ce&#8221;, c&#8217;est donc le d\u00e9but du sch\u00e9ma<\/p>\n<p id=\"fef6\" class=\"graf graf--p graf-after--p\">Ensuite, quelles sont les raisons potentielles pour lesquelles la lumi\u00e8re ne s&#8217;est pas allum\u00e9e\u00a0?<\/p>\n<figure id=\"be20\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0Q3DncvuPwcJIm6j.png\" data-image-id=\"0*Q3DncvuPwcJIm6j-.png\" data-width=\"564\" data-height=\"494\" \/><\/figure>\n<p id=\"b63a\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/f5c93b5a-e4ad-4c73-9971-be33ef77cb50.xml&amp;name=No%20Light%20in%20Room\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/f5c93b5a-e4ad-4c73-9971-be33ef77cb50.xml&amp;name=No%20Light%20in%20Room\">Modifier ce diagramme<\/a><\/p>\n<h3 id=\"e9bd\" class=\"graf graf--h3 graf-after--p\"><span id=\"Fault_Tree_Example_System_no_Warning_Template\">Exemple d&#8217;arbre de d\u00e9faillances \u2014 Syst\u00e8me sans mod\u00e8le d&#8217;avertissement<\/span><\/h3>\n<figure id=\"e97e\" class=\"graf graf--figure graf-after--h3\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0xOFMf13Aj7DHtHbf.png\" data-image-id=\"0*xOFMf13Aj7DHtHbf.png\" data-width=\"986\" data-height=\"764\" \/><\/figure>\n<p id=\"3404\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/58495657-e28b-4910-929c-2514290a380c.xml&amp;name=System%20no%20Warning\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/58495657-e28b-4910-929c-2514290a380c.xml&amp;name=System%20no%20Warning\">Modifier ce diagramme<\/a><\/p>\n<p id=\"5581\" class=\"graf graf--p graf-after--p\">Plus d&#8217;exemples d&#8217;ALE<\/p>\n<figure id=\"e2b4\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0toBxRoRDLvjLgRdU.png\" data-image-id=\"0*toBxRoRDLvjLgRdU.png\" data-width=\"658\" data-height=\"698\" \/><\/figure>\n<p id=\"03eb\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/187e0f3f-c76e-4316-b404-c760210a457a.xml&amp;name=Fault%20Tree%20Missed%20Bus%20Example\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/187e0f3f-c76e-4316-b404-c760210a457a.xml&amp;name=Fault%20Tree%20Missed%20Bus%20Example\">Arbre de d\u00e9faillances Exemple de bus manqu\u00e9<\/a><\/p>\n<figure id=\"98f4\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0USFYpuHLAC_LaH3T.png\" data-image-id=\"0*USFYpuHLAC_LaH3T.png\" data-width=\"996\" data-height=\"782\" \/><\/figure>\n<p id=\"7c38\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/58495657-e28b-4910-929c-2514290a380c.xml&amp;name=System%20no%20Warning\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/58495657-e28b-4910-929c-2514290a380c.xml&amp;name=System%20no%20Warning\">Syst\u00e8me pas d&#8217;avertissement<\/a><\/p>\n<figure id=\"a60c\" class=\"graf graf--figure graf-after--p\"><a href=\"https:\/\/online.visual-paradigm.com\/repository\/images\/6cdecc47-eb89-45ce-9190-312a4cd346b2\/infographics-design\/benefits-and-harms-of-coffee-infographic.png?s=360\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0OaBpeou1Yc4A3Kp5.png\" data-image-id=\"0*OaBpeou1Yc4A3Kp5.png\" data-width=\"574\" data-height=\"513\" \/><\/a><\/figure>\n<p id=\"8e39\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/f5c93b5a-e4ad-4c73-9971-be33ef77cb50.xml&amp;name=No%20Light%20in%20Room\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/f5c93b5a-e4ad-4c73-9971-be33ef77cb50.xml&amp;name=No%20Light%20in%20Room\">Pas de lumi\u00e8re dans la chambre<\/a><\/p>\n<figure id=\"9b4a\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0khUCcdkmGtO_OFZo.png\" data-image-id=\"0*khUCcdkmGtO_OFZo.png\" data-width=\"641\" data-height=\"586\" \/><\/figure>\n<p id=\"a169\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/a63c2ad3-7a98-4fea-b73e-76de2ab4c3fc.xml&amp;name=Fault%20Tree%20Diagram%20Illustration\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/a63c2ad3-7a98-4fea-b73e-76de2ab4c3fc.xml&amp;name=Fault%20Tree%20Diagram%20Illustration\">Illustration du diagramme d&#8217;arbre de d\u00e9faillances<\/a><\/p>\n<figure id=\"7ff2\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0yi-CTiNP5H-HfML.png\" data-image-id=\"0*yi--CTiNP5H-HfML.png\" data-width=\"1663\" data-height=\"830\" \/><\/figure>\n<p id=\"c452\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/5b2ada0d-1e93-473b-a6da-0cb3b3233dbf.xml&amp;name=Educational%20Fault%20Tree%20Analysis%20Example\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/5b2ada0d-1e93-473b-a6da-0cb3b3233dbf.xml&amp;name=Educational%20Fault%20Tree%20Analysis%20Example\">Exemple d&#8217;analyse d&#8217;arbre de d\u00e9faillance p\u00e9dagogique<\/a><\/p>\n<figure id=\"d6f4\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0hE6B8VfPdEiClqn5.png\" data-image-id=\"0*hE6B8VfPdEiClqn5.png\" data-width=\"1073\" data-height=\"615\" \/><\/figure>\n<p id=\"48d7\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/4715f39c-2f9b-4fa5-9675-56168f2f2c43.xml&amp;name=Growth%20obstacles%20Fault%20Tree%20Analysis\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/4715f39c-2f9b-4fa5-9675-56168f2f2c43.xml&amp;name=Growth%20obstacles%20Fault%20Tree%20Analysis\">Obstacles \u00e0 la croissance Analyse par arbre de d\u00e9faillances<\/a><\/p>\n<figure id=\"350a\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0ujcADjQCvsBLI3Wo.png\" data-image-id=\"0*ujcADjQCvsBLI3Wo.png\" data-width=\"907\" data-height=\"763\" \/><\/figure>\n<p id=\"0e63\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/7c39254b-f953-4ec6-a550-a207fe3aa42c.xml&amp;name=Component%20Flow%20Fault%20Tree%20Analysis\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/7c39254b-f953-4ec6-a550-a207fe3aa42c.xml&amp;name=Component%20Flow%20Fault%20Tree%20Analysis\">Analyse de l&#8217;arbre de d\u00e9faillance des flux de composants<\/a><\/p>\n<figure id=\"cf98\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0fo6mpA9ZLMqmId5n.png\" data-image-id=\"0*fo6mpA9ZLMqmId5n.png\" data-width=\"824\" data-height=\"1153\" \/><\/figure>\n<p id=\"efab\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/9778d037-541c-4d06-8bf1-070cd3c63272.xml&amp;name=Fault%20Tree%20Analysis%20Sample\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/9778d037-541c-4d06-8bf1-070cd3c63272.xml&amp;name=Fault%20Tree%20Analysis%20Sample\">Exemple d&#8217;analyse d&#8217;arbre de d\u00e9faillances<\/a><\/p>\n<figure id=\"ee17\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0dl9cxQGAE8SOc7Od.png\" data-image-id=\"0*dl9cxQGAE8SOc7Od.png\" data-width=\"1296\" data-height=\"741\" \/><\/figure>\n<p id=\"00be\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/3f11f402-5763-4376-a7a4-9aaaef279ce3.xml&amp;name=Electrical%20Fault%20Tree%20Analysis\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/3f11f402-5763-4376-a7a4-9aaaef279ce3.xml&amp;name=Electrical%20Fault%20Tree%20Analysis\">Analyse de l&#8217;arbre de d\u00e9faillance \u00e9lectrique<\/a><\/p>\n<figure id=\"f12d\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0wbVGVdsNoWy7zsVz.png\" data-image-id=\"0*wbVGVdsNoWy7zsVz.png\" data-width=\"994\" data-height=\"790\" \/><\/figure>\n<p id=\"58b1\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/90430f41-0f52-4321-ba85-7fd932d2bfbf.xml&amp;name=Gas%20Pipes%20Fault%20Tree%20Analysis\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/90430f41-0f52-4321-ba85-7fd932d2bfbf.xml&amp;name=Gas%20Pipes%20Fault%20Tree%20Analysis\">Analyse de l&#8217;arbre de d\u00e9faillance des conduites de gaz<\/a><\/p>\n<figure id=\"0ea8\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/08an7DyUNWX6WMQ_0.png\" data-image-id=\"0*8an7DyUNWX6WMQ_0.png\" data-width=\"1061\" data-height=\"1504\" \/><\/figure>\n<p id=\"a43b\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/1d1ce2c0-ce51-4cd2-bd70-11e3735c81cd.xml&amp;name=Mid%20Size%20Fault%20Tree%20Analysis%20Example\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/1d1ce2c0-ce51-4cd2-bd70-11e3735c81cd.xml&amp;name=Mid%20Size%20Fault%20Tree%20Analysis%20Example\">Exemple d&#8217;analyse d&#8217;arbre de d\u00e9faillances de taille moyenne<\/a><\/p>\n<figure id=\"6262\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0RrBKUhk_S-SJS-XG.png\" data-image-id=\"0*RrBKUhk_S-SJS-XG.png\" data-width=\"679\" data-height=\"777\" \/><\/figure>\n<p id=\"754e\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/0caf3cac-96a9-4cb0-b573-aae7f440727b.xml&amp;name=Fault%20Tree%20Analysis%20Example\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/0caf3cac-96a9-4cb0-b573-aae7f440727b.xml&amp;name=Fault%20Tree%20Analysis%20Example\">Exemple d&#8217;analyse d&#8217;arbre de d\u00e9faillances<\/a><\/p>\n<figure id=\"efc2\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0QHY-GeT6ImLtKAv0.png\" data-image-id=\"0*QHY-GeT6ImLtKAv0.png\" data-width=\"738\" data-height=\"585\" \/><\/figure>\n<p id=\"8fb3\" class=\"graf graf--p graf-after--figure graf--trailing\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/8ee11047-eb12-4523-aa29-be60d8881bbd.xml&amp;name=Basic%20Fault%20Tree%20Analysis\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=FaultTreeAnalysis&amp;gallery=\/repository\/8ee11047-eb12-4523-aa29-be60d8881bbd.xml&amp;name=Basic%20Fault%20Tree%20Analysis\">Analyse d&#8217;arbre de d\u00e9faillance de base<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&#8217;analyse par arbre de d\u00e9faillance est l&#8217;une des m\u00e9thodes les plus couramment utilis\u00e9es dans l&#8217;analyse de la fiabilit\u00e9 des syst\u00e8mes. Il s&#8217;agit d&#8217;un processus de conception ou d&#8217;am\u00e9lioration d&#8217;un syst\u00e8me par l&#8217;analyse de divers facteurs pouvant conduire \u00e0 une d\u00e9faillance du syst\u00e8me, notamment le mat\u00e9riel, les logiciels, l&#8217;environnement, les facteurs humains, etc. En dessinant l&#8217;arbre de d\u00e9faillance, on peut d\u00e9terminer les combinaisons possibles de modes et la probabilit\u00e9 de la cause de la d\u00e9faillance du syst\u00e8me. La probabilit\u00e9 de d\u00e9faillance du syst\u00e8me est calcul\u00e9e et les mesures correspondantes sont prises.<\/p>\n","protected":false},"author":5,"featured_media":10058,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[10,13,15],"tags":[],"class_list":["post-10056","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-brainstorming","category-online-diagrams","category-strategic-planning"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Analyse par arbre de d\u00e9faillances (FTA) \u2014 Arme secr\u00e8te pour l&#039;analyse des causes profondes - Cyberm\u00e9diane<\/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.cybermedian.com\/fr\/fault-tree-analysis-fta-secret-weapon-for-root-cause-analysis\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Analyse par arbre de d\u00e9faillances (FTA) \u2014 Arme secr\u00e8te pour l&#039;analyse des causes profondes - Cyberm\u00e9diane\" \/>\n<meta property=\"og:description\" content=\"L&#039;analyse par arbre de d\u00e9faillance est l&#039;une des m\u00e9thodes les plus couramment utilis\u00e9es dans l&#039;analyse de la fiabilit\u00e9 des syst\u00e8mes. Il s&#039;agit d&#039;un processus de conception ou d&#039;am\u00e9lioration d&#039;un syst\u00e8me par l&#039;analyse de divers facteurs pouvant conduire \u00e0 une d\u00e9faillance du syst\u00e8me, notamment le mat\u00e9riel, les logiciels, l&#039;environnement, les facteurs humains, etc. En dessinant l&#039;arbre de d\u00e9faillance, on peut d\u00e9terminer les combinaisons possibles de modes et la probabilit\u00e9 de la cause de la d\u00e9faillance du syst\u00e8me. 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