Category: Architecture

Service Level Indicators (SLIs) are what needs to be measured; SLOs tell me what we care about and what good looks like for a system’s users.

SLIs tell you what can be measured; SLOs tell you what matters (primarily, again, what matters to the system’s users).

Using the SLOs artefact you can develop and evolve your SLOs, even before you have any means of measuring those SLOs for real with Service Level Indicators (SLIs): In the above code snippet we’ve described three SLOs for a simple website service.

There’s so much more detail to go into, and in the next article I’ll walk through how to create a set of SLOs and SLIs as Code from scratch using the full power of Reliably.

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