Geek Culture
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Geek Culture

Apps Migration: Two in One

Today in big companies with thousands of apps we have a problem with a lot of legacy apps and systems. Most of the time we face three generations of apps or systems as shown in figure 1:

  • Generation 1: mainframe, COBOL, IMS / DB2 database on mainframe, terminal, screen-scraper and mostly on-premise, no automation
  • Generation 2: C / C++, Turbo Pascal, VisualBasic, Delphi, Java desktop apps, Client/Server architecture. Also monolith web apps with JSP / J2EE / JavaEE, PHP, mostly server-sided UI, mostly on-premise, with or without automation, always on

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