FILL: title (e.g. "Utility tree — ATAM")

FILL: framing. Leaf priority: H = high / M = medium / L = low.

FILL: Utility
FILL: Performance
FILL: Latency
H FILL: scenario (e.g. "Under 1k req/s, p99 response < 200ms").
M FILL: scenario (e.g. "Batch job finishes within the nightly window").
FILL: Availability
FILL: Fault recovery
H FILL: scenario (e.g. "Node fails; traffic reroutes with no dropped requests").
L FILL: scenario (e.g. "Region outage; degraded read-only mode within 5 min").
HHigh priority MMedium LLow