Originally Posted by
MCO Flyer
Their “old system” is the 1990s built DLTerm that can basically handle anything but from what I’ve been told, it involves more manual and hands on approach in order to know how to use it. The “new system” is their automated SNAPP system that automates much of the ticketing process but is limited in functionality and won’t work in some complicated ticketing situations/issues and DLTerm will need to be used instead.
This is a very common pattern in software these days. Legacy systems written by OG engineers are often the source of truth for logic correctness and accurate business logic for how things should and seamlessly work. None of the "new" systems that are essentially attempts to rehash the original systems will ever meet 100% parity with true legacy systems.
Out of curiosity, have you read any funny comments from original programmers in the source code?
Which language is the source code written in?