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How to ThinkIn the Age of AI
Definitionv1DF-533

Service Level Indicator

a carefully defined quantitative measure of some aspect of the level of service provided, always expressed as a proportion of good events divided by total events measured over a defined window

Why This Is a Definition

This definition precisely establishes the genus (quantitative measure) and differentia (proportion of good events over total events, measured over defined window) of an SLI, distinguishing it from other types of metrics and establishing its mathematical foundation.

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