| Availability |
≥99.9% monthly; maintenance windows announced ≥5 business days ahead. |
| Latency |
Primary patient/clinician screens ≤2 s p95; brief regen ≤5 s p95; activation flow ≤2 min end-to-end. |
| Scale (pilot ceiling) |
5,000 concurrent active episodes; 300 activations/day burst; 50 rps sustained API. |
| Durability / DR |
RPO ≤15 min; RTO ≤4 h; quarterly restore evidence. |
| Security |
HIPAA controls per §15; SOC 2 Type I evidence by pilot; encryption + audit universal. |
| Accessibility |
WCAG 2.2 AA; 44 px targets; dynamic type; screen-reader flows tested. |
| Language |
EN + ES full parity (UI, templates, voice); language switch persists. |
| Offline |
Emergency Card readable with zero connectivity (ADR-012 / NFR-013). |
| Browser/device |
iOS 16+/Android 10+ default browsers; last 2 evergreen desktop for brief/console. |
| Auditability |
Any instruction shown to a patient reproducible to source span + gate trail in ≤5 min via admin tools (DQS-001). |