To modernize the legacy systems or UI, organizations are using web frameworks such as Angular, React, or Vue. How does APIfication work in modernizing AS400 applications?ĪPIs on legacy systems are represented as REST APIs that share the required information with external users. This approach enables new, cloud native applications to leverage the capabilities of existing systems and data. Expose functionality via APIsĪ legacy IBM i application can be enhanced by securely exposing its functions or data via APIs without hampering its existing code. Cloud migration for your IBM i application involves a complete plan, various migration options and ROI calculation. During this process, IBM provides a nest migration approach to your enterprise. Cloud migrationĬloud migration is one of the modernization processes that involves microservices, re-platforming or re-hosting. Instead of breaking down the monolith application all at once, the application is divided part by part. Mostly the strangler pattern is followed when dividing the application into parts. Each service would have their own database and data model. In the illustration, a single application is divided into a collection of microservices or individual services within the app. Dividing into microservicesĪpplication modernization can also involve dividing or breaking down a legacy application into a collection of smaller components or microservices. The AS400 application can be modernized using cloud-native techniques, such as microservices, docker containers, decoupling, data analytics, artificial intelligence, and machine learning services. There are a handful of popular steps to application modernization that focus on a combination of micro services architecture, cloud migration, and exposing an application’s functionality via API. Today companies are using IBM i7.4 that has modified screens and features. Modifying legacy IBM I application to the latest version is recommended because the current state of IBM i has many extraordinary features.Īs already stated above, application modernization has been used heavily since the 90’s. Of all the approaches or methods shown in the chart, APIfication and UI frameworks are the latest and the most trusted methods to modernize IBM i applications. This figure shows the history of popular approaches to UI from the early 1990’s. ![]() This complexity motivated developers to look for user friendly interfaces. The green screen UI looked dull and more like a complex interface that only geeks could love. Graphical User Interface is not only attractive but they enhance the user experience and usability of the application. Soon, green screen UIs began to lose their popularity and GUI’s began to take over. New developers started taking interest in GUI based applications and customers saw it as more user friendly and interesting. The GUI provided a lot more space and features. The GUI was invented for distribution-based applications and it was not limited to 80 x 24 characters. It was in the mid to late ‘90s, when IBMI AS400 was introduced to a new UI known as the “Graphical User Interface,” or GUI. Since then, green screens show up in many online mainframe-based applications. The presence of an abundance of monochrome cathode ray tubes (CRTs) using P1 phosphor, resulted in the term ’green screen’. The standard user interface (UI) for this world-famous system was a rectangular screen 80 characters wide by 24 lines high. In the past, AS400 supported only green screen applications. ![]() Begun as an AS400 server series, the IBM iSeries and Power Systems come with many useful features the users cannot stop raving about. We offer an industry unique happiness guarantee on our work. ![]() We extend your existing team so you can accomplish your goals faster. We are programming experts in both legacy and modern platforms.
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