# RTSport — AT Experience Architecture
> 2026-05-08 | Design Decision

## Two-Mode Split

### Sideline Mode (mobile phone, game-time)
- **Context:** AT is on the field. Rain, gloves, one hand, looking up between plays.
- **Entry point:** Floating action button or quick-select athlete grid
- **Flow:** Tap athlete → 3-tap entry (body part → mechanism → severity) → done
- **Zero typing.** All tappable presets. Big touch targets (48px+). Works with wet fingers.
- **Output:** Creates Case + initial Event + updates athlete status → coach/parent dashboards instantly

### Clinic Mode (tablet/laptop, office hours)
- **Context:** AT is at their desk or in the training room. Can type.
- **Entry point:** Full AT dashboard — roster, case management, athlete search
- **Capabilities:**
  - Free-text treatment notes (not SOAP, but structured enough to be useful)
  - Milestone management — adjust target dates, mark complete, add new phases
  - Timeline adjustments — add events, update restrictions, document progress
  - Athlete history — prior cases, case reopening, injury trends
- **Desktop-first** but responsive for iPad use in the training room
- **Output:** Detailed case documentation, athlete progress tracking, compliance-ready audit trail

## What NOT to Build
- ❌ Full SOAP note editor (that's SWOL's job)
- ❌ ICD-10 code picker (keep it simple: "ankle sprain" not "S93.401A")
- ❌ Insurance/billing integration
- ❌ Concussion protocol wizard (v2 feature — ATGenius owns this niche)

## What's Already Built
| Capability | Mode | State |
|-----------|------|-------|
| Sideline entry 3-tap form | Sideline | ✅ Complete (sideline-entry.html) |
| Roster view with status dots | Clinic | ✅ In AT dashboard |
| Athlete detail/case view | Clinic | ✅ Component exists |
| Free-text notes | Neither | ❌ Not built |
| Milestone date adjustment | Neither | ❌ Not built |
| Athlete quick-select grid | Sideline | ❌ Not built |