Because large systems are complex and have very complex and hard to detect failure modes.
What is more impressive is how rare these events are, given the complexity of the underlying systems. Redundancy is not without its own problems (source of truth, for instance).
The IT is just poor. Tech firms routinely change much more massive and complex systems at a far faster pace compared to the stagnation found in airline IT, and yet total failures are not more frequent.
Im not sure that's true. If something makes the news it's likely to be of interest to a large amount of people, that doesn't immediately qualify it as something rare.
Comments
Because large systems are complex and have very complex and hard to detect failure modes.
What is more impressive is how rare these events are, given the complexity of the underlying systems. Redundancy is not without its own problems (source of truth, for instance).
They aren't that rare. Last UK ATC crash was in 2014 I think:
https://www.ft.com/content/65544730-8216-11e4-b9d0-00144feab...
And that's just the UK. Airport systems crashing is a regular occurrence. Paris crashed due to still relying on a Windows 3.1 system:
https://www.zdnet.com/article/a-23-year-old-windows-3-1-syst...
The IT is just poor. Tech firms routinely change much more massive and complex systems at a far faster pace compared to the stagnation found in airline IT, and yet total failures are not more frequent.
Not to forget the failure of Frankfurt airport systems earlier this year due to the breakage of a single glass-fibre cable:
https://www.dw.com/en/lufthansa-system-failure-causes-massiv...
Though this is not due to outdated IT, but lack of redundancy of a critical component of the system instead.
If it makes the news it is almost by definition rare.
Im not sure that's true. If something makes the news it's likely to be of interest to a large amount of people, that doesn't immediately qualify it as something rare.
Musk's foolish actions while owner of Twitter are not rare yet always on the news