This automatic faucet that need the hands to be between the wall and the water to turn on.

LazaroFilm@lemmy.world to Mildly Infuriating@lemmy.world – 541 points –
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five 9's or two nines or maybe even one nine. maybe one nine.

This is the first time I hear this expression, what does it mean?

"Five Nines" typically refers to something that works 99.999% of the time, which still allows for 1 screw-up out of 100,000.

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yes as dhork mentions its related to a concept of 6sigma which is an airline/telephony thing about things that must not fail. My little quip is suggesting they work like 90% of the time which is not great.

Finally learned what DFSS actually means rather than just a breakdown pf the fucking acronym lol

It means HubertManne had a stroke while typing.

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