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Jun 25The Middle(ware) Child
by in Feature Articles on 2025-07-10Once upon a time, there was a bank whose business relied on a mainframe. As the decades passed and the 21st century dawned, the bank's bigwigs realized they had to upgrade their frontline systems to applications built in Java and .NET, but—for myriad reasons that boiled down to cost, fear, and stubbornness—they didn't want to migrate away from the mainframe entirely. They also didn't want the new frontline systems to talk directly to the mainframe or vice-versa. So they tasked old-timer Edgar with writing some middleware. Edgar's brainchild was a Windows service that took care of receiving frontline requests, passing them to the mainframe, and sending the responses back.
Edgar's middleware worked well, so well that it was largely forgotten about. It outlasted Edgar himself, who, after another solid decade of service, moved on to another company.