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"proof" entries
Toyota Code, Sapir-Wharf-Emoji, Crowdsourcing Formal Proof, and Safety-Critical Code
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Toyota’s Spaghetti Code — Toyota had more than 10,000 global variables. And he was critical of Toyota watchdog supervisor — software to detect the death of a task — design. He testified that Toyota’s watchdog supervisor ‘is incapable of ever detecting the death of a major task. That’s its whole job. It doesn’t do it. It’s not designed to do it.’ (via @qrush)
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Google’s Design Icons (Kevin Marks) — Google’s design icons distinguish eight kinds of airline seats but has none for trains or buses.
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Verigames — DARPA-funded game to crowdsource elements of formal proofs. (via Network World)
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10 Rules for Writing Safety-Critical Code — which I can loosely summarize as “simple = safer, use the built-in checks, don’t play with fire.”