Speaking of the fragility of enterprise software… Here's the robust architecture of ...

2026-01-11 14:57:21 UTC

Speaking of the fragility of enterprise software… Here's the robust architecture of an online banking system I used to lead. 3.5 million people trusted this with their life savings.

That TUI app written in MUMPS(!) once powered the terminal a bank teller would use to process an in-person transaction. It embodies and unambiguously encodes every business rule for transactions that have been developed over decades.

https://en.wikipedia.org/wiki/MUMPS

Cory Doctorow (npub1fdr…lvhs)

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2026-01-11 14:57:21 UTC

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