Comment by fn-mote
3 months ago
> There is plenty of money sunk into all corners of the field but progress is slow
… because of mismanagement, just like other large software rewrites that you are probably familiar with.
It’s the same problem - updating a complex system - except there’s no other vendor you can switch to.
Other large software rewrites have unit tests.
ATC has human operators and people are non-deterministic and non repeatable and you can't just run a few tests and conclude it's fine.
The issues you're trying to stop may only occur once a month globally across all airports or something, and only be noticed once a year.