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Reliability Analytics & Self-Serve Tooling1 / 2

2 min lesson

Quantify blast radius to prioritize

Use "Quantify blast radius to prioritize" to tell the cases apart, then choose a response for each one.

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Quantify blast radius to prioritize

When two regressions compete for one engineer's day, blast radiusHow much breaks if a change goes wrong; the scope of potential damage. Press Enter for the full definition. decides. Affected users times severity gives a comparable number, so a 0.3% latency bump on the most-used surface can outrank a hard failure that hits a handful of people. Prioritizing by blast radius is how you focus a small team on the frustration that actually dominates.

BLAST RADIUS SETS THE QUEUE

Interactive diagram. Tab through its regions; each focused region shows its detail in the panel below.

diagram: quadrant

Reach x severity, not loudness. The top-right corner is the incident; the rest get filed with evidence attached.

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Full explanation

Escalate vs file: calibrate to impact

Escalate vs file: calibrate to impact

Use the same ladder as section 1: page for fast, spreading, user-visible burn, and ticket the bounded rest. The rule specific to this section is that blast radiusHow much breaks if a change goes wrong; the scope of potential damage. Press Enter for the full definition. decides which side a regression lands on, and anything you file carries its blast-radius estimate and evidence so it is triaged on merit.