{"id":6387,"date":"2011-11-08T19:54:09","date_gmt":"2011-11-08T18:54:09","guid":{"rendered":"http:\/\/www.ziserman.com\/blog\/?p=6387"},"modified":"2011-11-08T19:54:09","modified_gmt":"2011-11-08T18:54:09","slug":"interface-or-not-interface","status":"publish","type":"post","link":"https:\/\/www.ziserman.com\/blog\/2011\/11\/08\/interface-or-not-interface\/","title":{"rendered":"Interface or not interface"},"content":{"rendered":"

Discussion passionnante, hier, avec Theodo<\/a>.<\/p>\n

On a pas mal \u00e9chang\u00e9, en particulier sur les interfaces<\/strong>.<\/p>\n

Bien s\u00fbr, c\u00f4t\u00e9 Front Office, la question ne se pose pas : on se doit de proposer des interfaces faciles \u00e0 utiliser, intuitives, rapides, …<\/p>\n

Mais la question peut se poser c\u00f4t\u00e9 back office.<\/p>\n

Autant il est \u00e9vident que certaines fonctions se font tr\u00e8s bien via des interfaces, bien souvent web. Exemple : ajouter ou mettre \u00e0 jour un produit dans le catalogue, ajouter une image, …<\/p>\n

Mais pour certaines fonctions bien plus avanc\u00e9es, la question peut se poser.<\/p>\n

Exemple : gestion des processus (workflow).<\/p>\n

Est-ce vraiment une bonne id\u00e9e que de d\u00e9velopper un moteur graphique, pour repr\u00e9senter des choses aussi complexe que la mod\u00e9lisation des processus ?<\/p>\n

Regardons les deux faces du sujet :<\/p>\n

Si on a une interface :<\/h3>\n

L’interface donne un cadre, et elle permet de contr\u00f4ler qu’on reste dans ce cadre.<\/p>\n

Si on prend l’hypoth\u00e8se que cette interface est bien faite, (hum hum), cela va permettre d’aider l’utilisateur \u00e0 param\u00e9trer le syst\u00e8me.<\/p>\n

Exemple int\u00e9ressant de mon point de vue : le module de param\u00e9trage des promos sur Magento.<\/p>\n

\"\"<\/a><\/p>\n

Bon, l’exemple est certe particulier, parce qu’on voit bien que le r\u00e9sultat est finalement tr\u00e8s tr\u00e8s proche d’un programme…<\/p>\n

Si on n’a pas d’interface \u00a0:<\/h3>\n

Si on n’a pas d’interface, on va devoir utiliser un langage de description du sujet.<\/p>\n

Ce langage peut \u00eatre un langage h\u00f4te (PHP, Java, …) ou une syntaxe XML ou YAML, ou enfinun nouveau langage sp\u00e9cifique.<\/p>\n

Si on prend un langage h\u00f4te, l’avantage est qu’on peut exprimer directement le probl\u00e8me sous forme d’un programme.<\/p>\n

L’\u00e9norme avantage est qu’on n’aura pas \u00e0 d\u00e9velopper d’interface, complexe et tr\u00e8s cher.<\/p>\n

L’inconv\u00e9nient est qu’on a probablement perdu 99% des utilisateurs m\u00e9tiers du back office. Pour modifier un \u00e9l\u00e9ment, il faudra faire appel aux d\u00e9veloppeurs.<\/p>\n

Alors, en synth\u00e8se ?<\/h3>\n

C’est un vrai sujet, il faut voir au cas par cas.<\/p>\n

en fait, il y a toujours une limite, entre ce qu’on peut faire avec le back office, et ce qui doit \u00eatre programm\u00e9. Certains syst\u00e8mes essaient de repousser tr\u00e8s loin la bascule vers la programmation, mais cette bascule existe toujours, et c’est pas pr\u00eat d’\u00eatre fini : je ne crois absolument pas en \u00ab\u00a0la fin de la programmation\u00a0\u00bb<\/strong> avec la \u00ab\u00a0programmation graphique\u00a0\u00bb type UML… C’est un leurre marketing !<\/p>\n

Quelques id\u00e9es en vrac :<\/p>\n

    \n
  • Si il s’agit d’une op\u00e9ration r\u00e9p\u00e9t\u00e9e r\u00e9guli\u00e8rement par les utilisateurs du back office, pas d’h\u00e9sitation, il faudra une interface, et plus l’op\u00e9ration sera r\u00e9p\u00e9titive, et plus l’interface devra \u00eatre soign\u00e9e, pour faire gagner du temps aux \u00e9quipes ;<\/li>\n
  • Si l’interface s’av\u00e8re tr\u00e8s complexe, il arrive que la question prenne du sens : d\u00e9velopper l’interface peut \u00eatre tr\u00e8s co\u00fbteux, et finalement pas rentable du tout, parce qu’en r\u00e9alit\u00e9, les utilisateurs n’utiliseront pas cette interface<\/strong>. Exemple : qui utilise un modeleur de processus d’un ETL ? Des informaticiens, qui iraient bien plus vite en programmant…<\/li>\n
  • Si on doit \u00ab\u00a0modeler\u00a0\u00bb un probl\u00e8me via un langage de programmation, il est fondamental de d\u00e9velopper des couches qui permettent d’exprimer le probl\u00e8me avec un bon niveau d’abstraction<\/strong>. C’est tr\u00e8s important, parce que sinon, la mise \u00e0 jour du programme sera compliqu\u00e9, cher, … On ne fait pas toujours ce travaille, et c’est un vrai probl\u00e8me !<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

    Discussion passionnante, hier, avec Theodo. On a pas mal \u00e9chang\u00e9, en particulier sur les interfaces. Bien s\u00fbr, c\u00f4t\u00e9 Front Office, la question ne se pose pas : on se doit de proposer des interfaces faciles \u00e0 utiliser, intuitives, rapides, … Mais la question peut se poser c\u00f4t\u00e9 back office. Autant il est \u00e9vident que certaines […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[2],"tags":[379,245,52,189],"class_list":["post-6387","post","type-post","status-publish","format-standard","hentry","category-e-commerce","tag-araok","tag-back-office","tag-programmation","tag-systeme-dinformation-e-commerce"],"yoast_head":"\nInterface or not interface - Ziserman.com<\/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.ziserman.com\/blog\/2011\/11\/08\/interface-or-not-interface\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Interface or not interface - Ziserman.com\" \/>\n<meta property=\"og:description\" content=\"Discussion passionnante, hier, avec Theodo. On a pas mal \u00e9chang\u00e9, en particulier sur les interfaces. Bien s\u00fbr, c\u00f4t\u00e9 Front Office, la question ne se pose pas : on se doit de proposer des interfaces faciles \u00e0 utiliser, intuitives, rapides, … Mais la question peut se poser c\u00f4t\u00e9 back office. 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