About the work
In almost every company, there's a magical phrase used to describe a system's health: "it more or less works." Translated into plain English: nobody knows how often it goes down, how many requests fail, or how much money is lost when it decides not to work. But hey, "more or less."
SLI, SLO and SLA are the grown-up version of that phrase. They're the way to go from "I think it's fine" to "this is what it handles, this is what we promise, and this is what's at stake" — without having to fall back on the classic "trust me, I'm an engineer."
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Title SLOs, SLAs, and SLIs: putting numbers on "it kinda works"
In almost every company, there's a magical phrase used to describe a system's health: "it more or less works." Translated into plain English: nobody knows how often it goes down, how many requests fail, or how much money is lost when it decides not to work. But hey, "more or less."
SLI, SLO and SLA are the grown-up version of that phrase. They're the way to go from "I think it's fine" to "this is what it handles, this is what we promise, and this is what's at stake" — without having to fall back on the classic "trust me, I'm an engineer."
Work type Article
Tags blog, programming, software engineering, software development
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Registry info in Safe Creative
Identifier 2602204633640
Entry date Feb 20, 2026, 7:12 AM UTC
License Creative Commons Attribution-NoDerivatives 4.0
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Author. Holder Lino Figueroa Villar. Date Feb 20, 2026.
Information available at https://www.safecreative.org/work/2602204633640-slos-slas-and-slis-putting-numbers-on-it-kinda-works-
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