Understanding application modernization

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class="rh-menu-mobile-dropdown" data-rh-menu-context="dropdown-mobile" id="rh-py0b5" data-rh-background="white" data-rh-theme="light" data-rh-state="closed" aria-expanded=false data-rh-toggle-target="xxs xs sm md lg" ></nav> </div> </div> <div class="rh-menu-desktop"data-rh-hidden="xxs xs"> <div class="rh-menu-desktop-container"> <div class="rh-secondary-nav-placeholder"data-rh-hidden="xxs xs">Jump to section</div> <nav class="rh-menu-main-nav" data-rh-theme="light" data-rh-menu-main-type="secondary" data-rh-dynamic> <div class="rh-menu-main-nav-links" data-rh-menu-context="main-links">  <ul class="rh-navigation-link--component" data-rh-nav-type="secondary-navigation-bar" aria-label="template" aria-hidden ><li class="rh-navigation-link-container" aria-template="true"><a class="rh-navigation-link-item" href="" title=""></a></li></ul> </div> </nav> </div> </div> </section> <div class="rhb-block__body"> </div>  <div class="rh-band--layout" data-rh-navigation-label="Overview" data-rh-background-align="center-center" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><header class="rh-band-header" data-rh-layout="only8" data-rh-theme="">  <div class="rh-band-header--hash-offset" data-rh-hash="true"id="overview"></div> </header><div class="rh-band-content" data-rh-layout="7 4 flex left" >  <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <header class="rh-standard-header--component" data-rh-align=left > <div class="rh-standard-header-container"> <h3 class="rh-standard-header-headline-small" >Overview</h3> </div> </header>  <div class="rh-generic--component" data-rh-align="left" > <p>Application modernization is a process that improves software delivery performance for a business by updating—rather than replacing—older legacy software systems.</p> <p>For many organizations, this involves replatforming existing legacy workloads onto a modern cloud platform based on Kubernetes, and breaking monolithic applications into smaller pieces like microservices. It’s also common to adopt new ways of working, like DevOps, site reliability engineering (SRE) and CI/CD, as part of application modernization.</p> </div> </div> <div class="rh-group-footer" >  <span class="rh-cta--component" data-rh-align="left" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/resources/openshift-universal-app-modernization-journey-ebook" data-analytics-linkType="cta" data-analytics-text="Plan your application modernization journey" data-analytics-category="Overview" >Plan your application modernization journey<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></svg></span></a> </span> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="center" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/app_mod_what_is_illustration.svg" loading="lazy" > </div> </div> </div> </div> </div> </div></section></div> </div>  <div class="rh-band--layout" data-rh-navigation-label="Why modernize" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><header class="rh-band-header" data-rh-layout="only8 center" data-rh-theme="">  <div class="rh-band-header--hash-offset" data-rh-hash="true"id="why-modernize"></div><div class="rh-band-header--component" data-rh-align=center ><h3 class="rh-band-header-subsection-headline" >Why modernize?</h3> </div> </header><div class="rh-band-content" data-rh-layout="stacked" > <pfe-content-set class="rh-content-set--layout" tab-history variant="wind" align="center">   <h4 pfe-content-set--header class="rh-content-set-group--header" id="Development teams">Development teams</h4> <div pfe-content-set--panel class="rh-content-set-group--panel" data-rh-layout="6 6" >   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <header class="rh-standard-header--component" data-rh-align=left > <div class="rh-standard-header-container"> <h3 class="rh-standard-header-headline-small" >The benefits for application development teams</h3> </div> </header>  <div class="rh-generic--component" data-rh-align="left" > <p>to modernize their application include:</p> </div> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="full" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/development_teams_photo%402x.jpg" loading="lazy" > </div> </div> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Reduced technical debt</h4> <p>Modernizing an application can help to reduce technical debt, which can accrue when development teams add functionality to an application without fully considering its long-term impact. By modernizing an application, development teams can address issues related to technical debt and improve the overall quality of the software.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Improved teamwork and productivity</h4> <p>Modernized applications often enable collaboration, making it easier for development teams to work together and share code, leading to increased productivity.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Increased agility and flexibility</h4> <p>Modernized applications are often more agile and flexible, allowing development teams to respond quickly to changing market conditions and customer needs.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Improved scalability</h4> <p>Modernizing an application can help to improve its scalability, making it easier for development teams to handle increased workloads and user demands.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Access to new tools and technologies</h4> <p>Modernizing an application can allow development teams to use new tools and technologies, such as cloud computing, containers, and microservices, which can help to improve the performance and scalability of the software.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Enhanced security</h4> <p>Modernized applications can have improved security features, making it less vulnerable to cyber attacks and other security threats.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Cost savings</h4> <p>Modernizing an application can help to reduce development and maintenance costs over the long term, as development teams can take advantage of new technologies and tools to work more efficiently.</p> </div> </div> </div> </div>   <h4 pfe-content-set--header class="rh-content-set-group--header" id="IT operations">IT operations</h4> <div pfe-content-set--panel class="rh-content-set-group--panel" data-rh-layout="6 6" >   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <header class="rh-standard-header--component" data-rh-align=left > <div class="rh-standard-header-container"> <h3 class="rh-standard-header-headline-small" >The benefits for I.T. operations teams</h3> </div> </header>  <div class="rh-generic--component" data-rh-align="left" > <p>to modernize their application include:</p> </div> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" data-rh-justify="justify"> <div class="rh-group-body" >  <div class="rh-image-embed--component" data-rh-align="center" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/IT_ops_tab_image%402x.jpg" loading="lazy" > </div> </div> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Improved scalability</h4> <p>Modernizing applications can improve their scalability, making it easier for IT operations teams to handle increased workloads and user demands.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Enhanced security</h4> <p>Modernized applications can have improved security features, making them less vulnerable to cyber attacks and other security threats.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Reduced maintenance and support costs</h4> <p>Modernizing applications can help to reduce maintenance and support costs over the long term, as IT operations teams can take advantage of new technologies and tools to work more efficiently and effectively.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Increased agility and flexibility</h4> <p>Modernized applications are often more agile and flexible, allowing IT operations teams to respond quickly to changing market conditions and customer needs.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Better resource utilization</h4> <p>Modernized applications can use resources more efficiently, reducing the amount of hardware required and lowering operating costs.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Improved compliance</h4> <p>Modernized applications can help organizations comply with regulations and security standards, reducing the risk of fines and penalties.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Streamlined operations</h4> <p>Modernized applications can help to streamline operations, making it easier for IT operations teams to manage and maintain the software.</p> </div> </div> </div> </div>   <h4 pfe-content-set--header class="rh-content-set-group--header" id="Business leaders">Business leaders</h4> <div pfe-content-set--panel class="rh-content-set-group--panel" data-rh-layout="6 6" >   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <header class="rh-standard-header--component" data-rh-align=left > <div class="rh-standard-header-container"> <h3 class="rh-standard-header-headline-small" >The benefits for business leaders</h3> </div> </header>  <div class="rh-generic--component" data-rh-align="left" > <p>to modernize their application include:</p> </div> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="full" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/Biz_leader_tab_image%402x.jpg" loading="lazy" > </div> </div> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Increased agility and speed to market</h4> <p>Modernized applications can help organizations respond more quickly to changing market conditions and customer needs, providing a competitive advantage.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Improved customer experience</h4> <p>Modernized applications can improve the customer experience by providing better functionality, usability, and reliability.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Better data management</h4> <p>Modernized applications can have better data management capabilities, allowing organizations to make better decisions and gain deeper insights into their business.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Enhanced security</h4> <p>Modernized applications can have improved security features, reducing the risk of data breaches and other security threats.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Reduced technical debt</h4> <p>Modernizing applications can help to reduce technical debt, freeing up resources and improving the overall health of the IT infrastructure.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Increased productivity</h4> <p>Modernized applications can help to increase productivity by automating tasks and providing better tools and resources for employees.</p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h4>Cost savings</h4> <p>Modernizing applications can help to reduce maintenance and support costs over the long term, as organizations can take advantage of new technologies and tools to work more efficiently and effectively.</p> </div> </div> </div> </div> </pfe-content-set> </div></section></div> </div>  <div class="rh-band--layout" data-rh-navigation-label="Use cases" data-rh-background-align="center-center" data-rh-band-collapse="no-padding-bottom" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><header class="rh-band-header" data-rh-layout="only8" data-rh-theme="">  <div class="rh-band-header--hash-offset" data-rh-hash="true"id="use-cases"></div><div class="rh-band-header--component" data-rh-align=left ><h2 class="rh-band-header-subsection-headline" >What’s your modernization challenge?</h2><div class="rh-band-header-summary"><p>Application modernization can pose various challenges based on the language, platform, or existing infrastructure. Explore more below:</p> </div> </div> </header></section></div> </div>   <div class="rh-band--layout" data-rh-band-collapse="normal" data-rh-background="white" data-rh-border="bottom" > <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><div class="rh-band-content" data-rh-layout="4-7-grid vcenter" >  <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="full" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/java_app_use_case_illustration.svg" loading="lazy" > </div> </div> </div> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h3>Java applications</h3> <p>Java™ has been one of the most popular programming languages for decades. But many older Java workloads are monolithic and difficult to maintain.</p> </div> </div> <div class="rh-group-footer" >  <div class="rh-group--layout" > <div class="rh-group-body" data-rh-layout="min-stacked" >   <span class="rh-cta--component" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/topics/application-modernization/what-is-java-application-modernization" target="_self" data-analytics-linkType="cta" data-analytics-text="Learn more" data-analytics-category="What's your modernization challenge?|Java apps|Committed spend|Learn more" >Learn more<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></svg></span></a> </span>   <span class="rh-cta--component" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/technologies/cloud-computing/openshift/java-application-modernization-strategy" title="What's your modernization challenge?|Java apps|Committed spend|Plan your strategy" target="_self" data-analytics-linkType="cta" data-analytics-text="Plan your strategy" >Plan your strategy<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></svg></span></a> </span> </div> </div> </div> </div> </div></section></div> </div>  <div class="rh-band--layout" data-rh-band-collapse="normal" data-rh-background="white" data-rh-border="bottom" > <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><div class="rh-band-content" data-rh-layout="7-4-grid-reverse vcenter" >  <div class="rh-group--layout" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="left left-mobile" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/cloud_foundry_use_case_illustration.svg" loading="lazy" > </div> </div> </div> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h3>Cloud Foundry workloads</h3> <p>Cloud Foundry presents several challenges and limitations, including heavy costs to refactor and modernize legacy applications to fit its platform and a lack of support for newer technologies.</p> </div> </div> <div class="rh-group-footer" >  <div class="rh-group--layout" > <div class="rh-group-body" data-rh-layout="min-stacked" >   <span class="rh-cta--component" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/topics/application-modernization/what-is-cloud-foundry" target="_self" data-analytics-linkType="cta" data-analytics-text="Learn more" data-analytics-category="What’s your modernization challenge?|Cloud Foundry workloads" >Learn more<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></svg></span></a> </span> </div> </div> </div> </div> </div></section></div> </div>  <div class="rh-band--layout" data-rh-band-collapse="normal" data-rh-background="white" data-rh-border="bottom" > <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><div class="rh-band-content" data-rh-layout="4-7-grid vcenter" >  <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="center" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/net_app_use_case_illustration.svg" loading="lazy" > </div> </div> </div> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h3>.NET applications</h3> <p>Before Microsoft embraced Linux as a key platform, .NET was originally closed source and for Windows only. Several choices are available when you’re ready to modernize .NET apps.</p> </div> </div> <div class="rh-group-footer" >  <div class="rh-group--layout" > <div class="rh-group-body" data-rh-layout="min-stacked" >   <span class="rh-cta--component" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/topics/application-modernization/what-is-dotnet-modernization" target="_self" data-analytics-linkType="cta" data-analytics-text="Explore the options" data-analytics-category="What’s your modernization challenge?|.NET applications|Explore the options" >Explore the options<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></svg></span></a> </span>   <span class="rh-cta--component" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/technologies/cloud-computing/openshift/dotnet-modernization-strategy" target="_self" data-analytics-linkType="cta" data-analytics-text="Plan your strategy" data-analytics-category="What’s your modernization challenge?|.NET applications|Plan your strategy" >Plan your strategy<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></svg></span></a> </span> </div> </div> </div> </div> </div></section></div> </div>  <div class="rh-band--layout" data-rh-band-collapse="normal" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><div class="rh-band-content" data-rh-layout="7-4-grid-reverse vcenter" >  <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="center" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/virtualization_use_case_illustration.svg" loading="lazy" > </div> </div> </div> </div> </div>   <div class="rh-group--layout" data-rh-layout="stacked" > <div class="rh-group-body" data-rh-layout="min-stacked" >  <div class="rh-generic--component" data-rh-align="left" > <h3>Virtualization</h3> <p>Many organizations have an investment in applications that run as virtual machines. OpenShift® Virtualization is a feature of Red Hat OpenShift that allows you to run and manage virtual machines (VM) and container workloads side by side.</p> </div> </div> <div class="rh-group-footer" >  <div class="rh-group--layout" > <div class="rh-group-body" data-rh-layout="min-stacked" >   <span class="rh-cta--component" data-rh-cta-type="secondary" > <a class="rh-cta-link" href="/en/technologies/cloud-computing/openshift/virtualization" target="_self" data-analytics-linkType="cta" data-analytics-text="Explore" >Explore<span aria-hidden="true"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Directional-A-Black-RGB</title><path d="M29.74 17.95v-.1a.9.9 0 0 0-.03-.086c-.01-.025-.016-.05-.027-.075a.72.72 0 0 0-.148-.223l-3.5-3.5-3.5-3.5a.75.75 0 1 0-1.06 1.06l2.86 2.86 2.86 2.86H7a.75.75 0 0 0 0 1.5h20.19l-2.22 2.223-3.5 3.5a.75.75 0 1 0 1.06 1.06l3.5-3.5 3.5-3.5c.007-.007.01-.016.016-.023a.738.738 0 0 0 .147-.22l.005-.02a.76.76 0 0 0 .045-.236.23.23 0 0 0 .007-.03c0-.017-.008-.032-.01-.05z"/></svg></span></a> </span> </div> </div> </div> </div> </div></section></div> </div>  <div class="rh-band--layout" data-rh-navigation-label="Approach" data-rh-background-align="center-center" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><header class="rh-band-header" data-rh-layout="only8" data-rh-theme="">  <div class="rh-band-header--hash-offset" data-rh-hash="true"id="approach"></div><div class="rh-band-header--component" data-rh-align=left ><h2 class="rh-band-header-subsection-headline" >Modernization approach</h2><div class="rh-band-header-summary"><p>Application modernization initiatives typically follow these high level phases:</p> </div> </div> </header><div class="rh-band-content" data-rh-layout="3 3 3 3 flex left" >  <div class="rh-card--layout " data-rh-background="white" data-rh-bg-align="cover" data-rh-overlay="white-0" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" data-rh-theme="light" >  <div class="rh-icon-panel--component"> <div class="rh-icon-panel-wrapper" data-rh-icon-size="medium" data-rh-icon-color=red data-rh-align="left" > <div class="rh-icon-panel-svg" aria-hidden="true"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Objects-Magnifying_Glass-A-Black-RGB</title><path d="M15 6.32a8.75 8.75 0 1 0 8.75 8.75A8.76 8.76 0 0 0 15 6.32zm0 16a7.25 7.25 0 1 1 7.25-7.25A7.26 7.26 0 0 1 15 22.32zM29.2 28.42l-5-4.84a.76.76 0 0 0-1.06 0 .76.76 0 0 0 0 1.06l5 4.83a.75.75 0 0 0 1-1.08zM22.59 22a.78.78 0 0 0-.82-.17.7.7 0 0 0-.24.17.75.75 0 0 0-.22.53.71.71 0 0 0 .22.53.75.75 0 0 0 .53.22.77.77 0 0 0 .53-.22.75.75 0 0 0 .22-.53.72.72 0 0 0-.06-.29.78.78 0 0 0-.16-.24z"/><path d="M15 9.14a5.94 5.94 0 0 0-5.93 5.93.75.75 0 0 0 1.5 0A4.44 4.44 0 0 1 15 10.64a.75.75 0 0 0 0-1.5z"/></svg> </div> <div class="rh-icon-panel-content"> <h4 class="rh-icon-panel-title" id="rh-ow1hz">Discovery and assessment phase</h4> <div class="rh-icon-panel-summary"> <div class="rh-generic--component" > <p>Evaluate the existing application, infrastructure, and processes to assess capabilities and limitations, and analyze business and technical requirements.</p> <p></p> </div> </div> </div> </div> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-bg-align="cover" data-rh-overlay="white-0" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" data-rh-theme="light" >  <div class="rh-icon-panel--component"> <div class="rh-icon-panel-wrapper" data-rh-icon-size="medium" data-rh-icon-color=red data-rh-align="left" > <div class="rh-icon-panel-svg" aria-hidden="true"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-People_and_Audiences-Architect-A-Black</title><path d="M24 16.75a2.25 2.25 0 1 0-2.25-2.25A2.25 2.25 0 0 0 24 16.75zm0-3a.75.75 0 1 1-.75.75.76.76 0 0 1 .75-.75zm5-4.5H11a.65.65 0 0 0-.19 0h-.07a.86.86 0 0 0-.22.15l-4 4a.86.86 0 0 0-.15.22v.07a.65.65 0 0 0 0 .19V26a.76.76 0 0 0 .75.75H29a.76.76 0 0 0 .75-.75V10a.76.76 0 0 0-.75-.75zm-18.75 2.56v1.44H8.81zm18 13.44H7.75v-10.5H11a.76.76 0 0 0 .75-.75v-3.25h16.5zM24 23.75a2.25 2.25 0 1 0-2.25-2.25A2.25 2.25 0 0 0 24 23.75zm0-3a.75.75 0 1 1-.75.75.76.76 0 0 1 .75-.75zM10.26 18a2.25 2.25 0 1 0 2.25-2.25A2.25 2.25 0 0 0 10.26 18zm2.25-.75a.75.75 0 1 1-.75.75.76.76 0 0 1 .75-.75zm4.13 1.5h.61v2.75a.76.76 0 0 0 .75.75h1.88a.75.75 0 0 0 0-1.5h-1.13v-5.5h1.13a.75.75 0 0 0 0-1.5H18a.76.76 0 0 0-.75.75v2.75h-.61a.75.75 0 0 0 0 1.5z"/></svg> </div> <div class="rh-icon-panel-content"> <h4 class="rh-icon-panel-title" id="rh-yooqw">Planning and design phase</h4> <div class="rh-icon-panel-summary"> <div class="rh-generic--component" > <p>Prioritize assessment findings, define the scope of the modernization effort and create a detailed plan, including a business case and designing the target architecture.</p> </div> </div> </div> </div> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-bg-align="cover" data-rh-overlay="white-0" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" data-rh-theme="light" >  <div class="rh-icon-panel--component"> <div class="rh-icon-panel-wrapper" data-rh-icon-size="medium" data-rh-icon-color=red data-rh-align="left" > <div class="rh-icon-panel-svg" aria-hidden="true"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-People_and_audiences-Developer-A-Black-RGB</title><path d="M33 27.25H3a.75.75 0 0 0 0 1.5h30a.75.75 0 0 0 0-1.5zM6 25.73h24a.75.75 0 0 0 .75-.75V9a.76.76 0 0 0-.75-.77h-9a.75.75 0 0 0 0 1.5h8.25v14.5H6.75V9.73H15a.75.75 0 0 0 0-1.5H6a.76.76 0 0 0-.75.77v16a.75.75 0 0 0 .75.73z"/><path d="M17.47 9.51a.75.75 0 0 0 1.06 0 .78.78 0 0 0 .16-.24.73.73 0 0 0 0-.58.75.75 0 0 0-1.22-.24.63.63 0 0 0-.16.24.73.73 0 0 0 0 .58.63.63 0 0 0 .16.24zM17 21.75h.16a.75.75 0 0 0 .73-.6l1.71-8a.75.75 0 1 0-1.47-.31l-1.7 8a.75.75 0 0 0 .57.91zM20.82 21a.71.71 0 0 0 .53.22.74.74 0 0 0 .53-.22l3.51-3.52a.74.74 0 0 0 0-1.06l-3.51-3.52a.75.75 0 0 0-1.06 0 .74.74 0 0 0 0 1.06l3 3-3 3a.74.74 0 0 0 0 1.04zM15.18 12.94a.75.75 0 0 0-1.06 0l-3.51 3.52a.74.74 0 0 0 0 1.06L14.12 21a.74.74 0 0 0 .53.22.71.71 0 0 0 .53-.22.74.74 0 0 0 0-1.06l-3-3 3-3a.74.74 0 0 0 0-1z"/></svg> </div> <div class="rh-icon-panel-content"> <h4 class="rh-icon-panel-title" id="rh-873l2">Development and deployment phase</h4> <div class="rh-icon-panel-summary"> <div class="rh-generic--component" > <p>Refactor code and develop modernized application components, while integrating with other systems and services and deploying to production.</p> </div> </div> </div> </div> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-bg-align="cover" data-rh-overlay="white-0" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" data-rh-theme="light" >  <div class="rh-icon-panel--component"> <div class="rh-icon-panel-wrapper" data-rh-icon-size="medium" data-rh-icon-color=red data-rh-align="left" > <div class="rh-icon-panel-svg" aria-hidden="true"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><title>Icon-Red_Hat-Objects-Tool_Wrench-A-Black-RGB</title><path d="M18 27a.77.77 0 0 0-.22.54.67.67 0 0 0 .06.28.63.63 0 0 0 .16.18.66.66 0 0 0 .24.17.73.73 0 0 0 .58 0A.66.66 0 0 0 19 28a.63.63 0 0 0 .16-.24.67.67 0 0 0 .06-.28A.77.77 0 0 0 19 27a.78.78 0 0 0-1 0zM17.5 16.27h2a.75.75 0 0 0 0-1.5h-2a.75.75 0 0 0 0 1.5z"/><path d="M16.5 12.27a.76.76 0 0 0 .75-.75v-3a.75.75 0 0 0-.75-.75h-2a.75.75 0 0 0-.7.47l-2 5v.13a.8.8 0 0 0 0 .15.54.54 0 0 0 .05.22.17.17 0 0 0 0 .07.49.49 0 0 0 .1.15.47.47 0 0 0 .06.09h.07a.57.57 0 0 0 .18.12.71.71 0 0 0 .28.06h.3a5.74 5.74 0 0 0 2.95 4.29v9a2.75 2.75 0 0 0 5.5 0v-9a5.74 5.74 0 0 0 3-5 .76.76 0 0 0 0-.21l-2-7a.75.75 0 0 0-.72-.54h-2a.75.75 0 0 0-.75.75v6.25h-5.21L15 9.27h.74v2.25a.76.76 0 0 0 .76.75zm3 2a.76.76 0 0 0 .75-.75V7.27h.68l1.82 6.35a4.26 4.26 0 0 1-2.55 3.79.75.75 0 0 0-.45.68v9.43a1.25 1.25 0 0 1-2.5 0v-9.43a.75.75 0 0 0-.45-.68 4.24 4.24 0 0 1-2.48-3.14z"/></svg> </div> <div class="rh-icon-panel-content"> <h4 class="rh-icon-panel-title" id="rh-8xsxl">Operations and maintenance phase</h4> <div class="rh-icon-panel-summary"> <div class="rh-generic--component" > <p>Provide ongoing maintenance and support, monitor for issues, optimize the application, and plan for future upgrades and enhancements.</p> </div> </div> </div> </div> </div> </div> </div> </div></section></div> </div>  <div class="rh-band--layout" data-rh-navigation-label="Next steps" data-rh-background-align="center-center" data-rh-background="white"> <div class="rh-band-container"data-rh-layout="stacked" ><section class="rh-band-main" data-rh-layout="stacked" ><header class="rh-band-header" data-rh-layout="only8" data-rh-theme="">  <div class="rh-band-header--hash-offset" data-rh-hash="true"id="next-steps"></div><div class="rh-band-header--component" data-rh-align=left ><h2 class="rh-band-header-subsection-headline" >Ready to take the next step?</h2> </div> </header><div class="rh-band-content" data-rh-layout="3 3 3 3 flex left" >  <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="bleed" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/app_mod_report_thumbanil%402x_1.jpg" loading="lazy" > </div> </div> </div>  <div class="rh-generic--component" data-rh-align="left" > <div class="rc-title">Report</div> <p><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="b8ded55c-18d5-4848-82ea-4e8cdb5f2132" href="/en/resources/app-modernization-report" title="The state of application modernization">Application modernization is a clear priority for organizations across the globe. Discover key findings from our survey.</a></p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="bleed" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/plan_app_mod%402x_1.jpg" loading="lazy" > </div> </div> </div>  <div class="rh-generic--component" data-rh-align="left" > <div class="rc-title">E-book</div> <p><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="2937773c-6a1d-494d-93b6-d6d7e5c17f45" href="/en/engage/java-application-modernization-20220926" title="Plan your Java application modernization journey">This practical guide will walk you through the Java app modernization journey with Red Hat.</a></p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="bleed" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/self_assessment_thumbnail%402x.jpg" loading="lazy" > </div> </div> </div>  <div class="rh-generic--component" data-rh-align="left" > <div class="rc-title">self-assessment</div> <p><a href="https://assessments.redhat.com/RTA/en?data=eyJjdXJyZW50UGFnZU5vIjoxLCJkYXRhIjp7ImludGVyZXN0cyI6WyJhcHBzIl19fQ==">Free online self-assessment. Find out how well your organization is positioned for the future of your applications. Takes about 5-7 minutes.</a></p> </div> </div> </div>   <div class="rh-card--layout " data-rh-background="white" data-rh-theme="light" data-rh-bg-align="cover" data-rh-layout="stacked" data-rh-justify="justify"><div class="rh-card-content" data-rh-layout="stacked" >  <div class="rh-image-embed--component" data-rh-align="bleed" > <div class="rh-image-embed-container"> <div class="rh-image-embed-span" > <img class="rh-image-embed-img" src="/rhdc/managed-files/level_up_thumbnail.svg" loading="lazy" > </div> </div> </div>  <div class="rh-generic--component" data-rh-align="left" > <div class="rc-title">Level up</div> <p><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="8451ab82-d2e2-45f8-aa19-9c243056d81e" href="/en/engage/level-up" title="Red Hat Level Up Programs">No-cost access to Red Hat OpenShift and Application Foundations -  one year fully supported application platform, exclusive for customers.</a></p> </div> </div> </div> </div></section></div> 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Understanding application modernization