{"id":33481,"date":"2026-10-16T18:00:51","date_gmt":"2026-10-16T16:00:51","guid":{"rendered":"https:\/\/itpatagonia.com\/?p=33481"},"modified":"2026-11-02T08:12:00","modified_gmt":"2026-11-02T07:12:00","slug":"como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco","status":"publish","type":"post","link":"https:\/\/itpatagonia.com\/en\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco","title":{"rendered":"How do I operate on my core without disrupting the bank?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">A bank&#039;s core system cannot be shut down, so modernization is done while the system is running. This involves a phased approach: optimizing online and batch processes, upgrading to COBOL 6, and optimizing connections. <em>host to host<\/em>, Expose functions through APIs to decouple channels and, using the strangler pattern, replace components without turning off the rest.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each step is accompanied by continuous testing and plans to backtrack if something goes wrong. In this episode of our \u201cOff the Record\u201d series, we talk with <a href=\"https:\/\/www.linkedin.com\/in\/pablo-reitano\/\">Pablo Reitano<\/a>, Head of Modernization &amp; Legacy at IT Patagonia on these points:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It is modernized while the system is running: optimization, APIs and gradual replacement (strangler), what does this imply?<\/li>\n\n\n\n<li>The conditions for success are execution: turnkey, key people involved, and a clear scope.<\/li>\n\n\n\n<li>Systematic monitoring of benefits and progress reports support the program.<\/li>\n\n\n\n<li>Internal resistance is a factor that must be managed from the beginning.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"How do I modernize the core without disrupting operations?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/HtcEBVEr_JQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 id=\"h-donde-suelen-fallar-estos-programas\" class=\"wp-block-heading\"><strong>Where these programs usually fail<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The biggest risk is rarely technology. The critical issues that recur in large-scale programs are continuous executive alignment and decision-making agility in committees, the availability of key bank teams for surveys, testing, and training, systematic monitoring of benefits, scope control, and careful allocation of hours, which are often very tight.<\/p>\n\n\n\n<h2 id=\"h-tres-condiciones-de-ejecucion\" class=\"wp-block-heading\"><strong>Three conditions of execution<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/itpatagonia.com\/en\/blog\/modernizacion-del-core-llave-en-mano\/\">Turnkey<\/a>: a comprehensive program with a single person responsible for the outcome and governed jointly, in which people are involved from the beginning: the financial entity&#039;s technical teams participate in surveys, tests and training, and mainframe architects talk with open platform architects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Clear scope<\/strong>: anything that appears outside the original plan is managed as a separate project, so as not to overwhelm the program.<\/p>\n\n\n\n<h2 id=\"h-la-parte-politica-del-cambio\" class=\"wp-block-heading\"><strong>The political aspect of change<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/itpatagonia.com\/en\/blog\/framework-7rs-para-modernizacion-de-core-y-legacy\/\">Modernize the core<\/a> It also has a human and political component. There are teams that have been with the system for decades and don&#039;t always want to change it. That&#039;s why shared governance and constant communication aren&#039;t extras: they&#039;re part of the plan, just like the metrics that show progress.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>In this video we analyze how to advance in stages in the modernization of a core ecosystem, with continuous testing and a rollback plan, with key people involved and with a clear scope.<\/p>","protected":false},"author":3,"featured_media":33811,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","page_builder":"","footnotes":""},"categories":[173],"tags":[180,138,70,45],"class_list":["post-33481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-modernizacion-core","tag-legacy","tag-modernizacion-del-core","tag-modernizacion-del-mainframe","tag-modernizar-el-mainframe"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco? - IT Patagonia<\/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:\/\/itpatagonia.com\/en\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?\" \/>\n<meta property=\"og:description\" content=\"En este video analizamos c\u00f3mo avanzar en etapas en la modernizaci\u00f3n de un ecosistema core, con pruebas continuas y plan de vuelta atr\u00e1s, con las personas clave involucradas y con alcance claro.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/itpatagonia.com\/en\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\/\" \/>\n<meta property=\"og:site_name\" content=\"IT Patagonia\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-16T16:00:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-02T07:12:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/itpatagonia.com\/wp-content\/uploads\/2026\/10\/portadas-de-YT-_1-scaled.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1440\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Valeria Frick\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Valeria Frick\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\"},\"author\":{\"name\":\"Valeria Frick\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#\\\/schema\\\/person\\\/ac8661c9cfc3e2a5a865f0fe97c9e1bb\"},\"headline\":\"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?\",\"datePublished\":\"2026-10-16T16:00:51+00:00\",\"dateModified\":\"2026-11-02T07:12:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\"},\"wordCount\":401,\"publisher\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/itpatagonia.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/portadas-de-YT-_1-scaled.png\",\"keywords\":[\"Legacy\",\"Modernizaci\u00f3n del core\",\"Modernizaci\u00f3n del Mainframe\",\"Modernizar el Mainframe\"],\"articleSection\":[\"Modernizaci\u00f3n core\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\",\"url\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\",\"name\":\"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco? - IT Patagonia\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/itpatagonia.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/portadas-de-YT-_1-scaled.png\",\"datePublished\":\"2026-10-16T16:00:51+00:00\",\"dateModified\":\"2026-11-02T07:12:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage\",\"url\":\"https:\\\/\\\/itpatagonia.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/portadas-de-YT-_1-scaled.png\",\"contentUrl\":\"https:\\\/\\\/itpatagonia.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/portadas-de-YT-_1-scaled.png\",\"width\":2560,\"height\":1440,\"caption\":\"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/blog\\\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\\\/\\\/itpatagonia.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#website\",\"url\":\"https:\\\/\\\/itpatagonia.com\\\/\",\"name\":\"IT Patagonia\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/itpatagonia.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#organization\",\"name\":\"IT Patagonia\",\"url\":\"https:\\\/\\\/itpatagonia.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/itpatagonia.com\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/IT-Patagonia-logo-web.png\",\"contentUrl\":\"https:\\\/\\\/itpatagonia.com\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/IT-Patagonia-logo-web.png\",\"width\":350,\"height\":100,\"caption\":\"IT Patagonia\"},\"image\":{\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.linkedin.com\\\/company\\\/itpatagonia\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/itpatagonia.com\\\/#\\\/schema\\\/person\\\/ac8661c9cfc3e2a5a865f0fe97c9e1bb\",\"name\":\"Valeria Frick\",\"url\":\"https:\\\/\\\/itpatagonia.com\\\/en\\\/blog\\\/author\\\/vfrick\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"How do I operate my core business with open heart surgery without disrupting the bank? - IT Patagonia","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/itpatagonia.com\/en\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\/","og_locale":"en_US","og_type":"article","og_title":"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?","og_description":"En este video analizamos c\u00f3mo avanzar en etapas en la modernizaci\u00f3n de un ecosistema core, con pruebas continuas y plan de vuelta atr\u00e1s, con las personas clave involucradas y con alcance claro.","og_url":"https:\/\/itpatagonia.com\/en\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco\/","og_site_name":"IT Patagonia","article_published_time":"2026-10-16T16:00:51+00:00","article_modified_time":"2026-11-02T07:12:00+00:00","og_image":[{"width":2560,"height":1440,"url":"https:\/\/itpatagonia.com\/wp-content\/uploads\/2026\/10\/portadas-de-YT-_1-scaled.png","type":"image\/png"}],"author":"Valeria Frick","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Valeria Frick","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#article","isPartOf":{"@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco"},"author":{"name":"Valeria Frick","@id":"https:\/\/itpatagonia.com\/#\/schema\/person\/ac8661c9cfc3e2a5a865f0fe97c9e1bb"},"headline":"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?","datePublished":"2026-10-16T16:00:51+00:00","dateModified":"2026-11-02T07:12:00+00:00","mainEntityOfPage":{"@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco"},"wordCount":401,"publisher":{"@id":"https:\/\/itpatagonia.com\/#organization"},"image":{"@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage"},"thumbnailUrl":"https:\/\/itpatagonia.com\/wp-content\/uploads\/2026\/10\/portadas-de-YT-_1-scaled.png","keywords":["Legacy","Modernizaci\u00f3n del core","Modernizaci\u00f3n del Mainframe","Modernizar el Mainframe"],"articleSection":["Modernizaci\u00f3n core"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco","url":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco","name":"How do I operate my core business with open heart surgery without disrupting the bank? - IT Patagonia","isPartOf":{"@id":"https:\/\/itpatagonia.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage"},"image":{"@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage"},"thumbnailUrl":"https:\/\/itpatagonia.com\/wp-content\/uploads\/2026\/10\/portadas-de-YT-_1-scaled.png","datePublished":"2026-10-16T16:00:51+00:00","dateModified":"2026-11-02T07:12:00+00:00","breadcrumb":{"@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#primaryimage","url":"https:\/\/itpatagonia.com\/wp-content\/uploads\/2026\/10\/portadas-de-YT-_1-scaled.png","contentUrl":"https:\/\/itpatagonia.com\/wp-content\/uploads\/2026\/10\/portadas-de-YT-_1-scaled.png","width":2560,"height":1440,"caption":"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?"},{"@type":"BreadcrumbList","@id":"https:\/\/itpatagonia.com\/blog\/como-opero-mi-core-a-corazon-abierto-sin-frenar-el-banco#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/itpatagonia.com\/"},{"@type":"ListItem","position":2,"name":"\u00bfC\u00f3mo opero mi core a coraz\u00f3n abierto sin frenar el banco?"}]},{"@type":"WebSite","@id":"https:\/\/itpatagonia.com\/#website","url":"https:\/\/itpatagonia.com\/","name":"IT Patagonia","description":"","publisher":{"@id":"https:\/\/itpatagonia.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/itpatagonia.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/itpatagonia.com\/#organization","name":"IT Patagonia","url":"https:\/\/itpatagonia.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/itpatagonia.com\/#\/schema\/logo\/image\/","url":"https:\/\/itpatagonia.com\/wp-content\/uploads\/2023\/11\/IT-Patagonia-logo-web.png","contentUrl":"https:\/\/itpatagonia.com\/wp-content\/uploads\/2023\/11\/IT-Patagonia-logo-web.png","width":350,"height":100,"caption":"IT Patagonia"},"image":{"@id":"https:\/\/itpatagonia.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.linkedin.com\/company\/itpatagonia\/"]},{"@type":"Person","@id":"https:\/\/itpatagonia.com\/#\/schema\/person\/ac8661c9cfc3e2a5a865f0fe97c9e1bb","name":"Valeria Frick","url":"https:\/\/itpatagonia.com\/en\/blog\/author\/vfrick"}]}},"_links":{"self":[{"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/posts\/33481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/comments?post=33481"}],"version-history":[{"count":2,"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/posts\/33481\/revisions"}],"predecessor-version":[{"id":33483,"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/posts\/33481\/revisions\/33483"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/media\/33811"}],"wp:attachment":[{"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/media?parent=33481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/categories?post=33481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itpatagonia.com\/en\/wp-json\/wp\/v2\/tags?post=33481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}