I see people on here rip Disney IT all the time. I've been in the industry professionally for over 30 years, and have even done and still do work for Disney.
If you guys had any idea what it took to run the P&R (Parks and Resorts) systems, you wouldn't be so harsh. The levels of inter-operability and inter-dependency is unbelievable.
You also have to remember that it MUST be responsive, with near immediate responses on all systems, as virtually everything operates realtime, right down to the braking systems on the roller coasters. This is not your father's nightly batch systems run in a computer clean room. It's truly a wonder it runs at all, but to talk about how terrible it all is is truly a disservice to all of us IT Professional Imagineers that make it all function 24 hours per day, 365 days per year.
I'd much prefer that the trains on Space Mountain shut down when the train in front has a problem to getting my waitlist an hour sooner. It's a matter of priorities and where bodies need to be thrown at problems.
Think about all this next time you're at a gate and that Mickey Head turns green sub-2 seconds (Yes. That's a standard). Now think about all the other Mickey Heads doing it all over all the parks worldwide simultaneously. That's just the gates, folks.
There's a huge difference in writing code (Due respect to all programmers. I was one at a large bank in my early career too.) for a program or task and understanding the elaborate integration of systems of programs working together to a common goal.
Anybody that thinks that P&R systems are lacking or otherwise have absolutely no grasp of the magnitude and complexity of the systems involved. I'm sure some of you may have, but if you have seen the racks upon racks upon racks of servers (in the TENS of THOUSANDS) I have seen at the parks, you would be astounded that anything ever works, probably.
It's an unbelievable system. Disney's IT should be applauded instead of cursed.