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.
Live workflow · 3 working · 1 queuedLive
Signal · gather Working
Decide · pick action Working
Apply · with verify Working
Learn · update playbook Queued
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.