Incident Management Practical By Samson Tanimawo, PhD Published Feb 1, 2026 4 min read

Incident Blast Radius Mapping

What does this incident affect? Map it explicitly.

Affected services

Direct: services with failed requests.

Indirect: services that depend on the affected ones.

Affected customers

Count, not estimate. Use the actual data.

Per-segment if customer tiers differ.

Revenue impact

Tied to the customer count and per-customer value.

Honest; not inflated, not understated.