L1 — System Context
C4 Level 1: Shows how Stock Market Professional fits into the world — who uses it, and what external systems it depends on.
C4 Model — Level 1
The Context diagram answers: What does this system do, and who / what interacts with it?
Context Diagram
Actors & Systems
| Entity | Type | Role |
|---|---|---|
| Trader (Lego) | Person | Reviews daily signal plan, executes trades manually |
| Market Data Provider | External System | Source of truth for price data |
| Discord | External System | Primary delivery channel for signals |
| Broker / Trading Platform | External System | Where actual trades happen (out of scope) |
| Economic Calendar API | External System | News filter to avoid high-impact event windows |
Key Constraints
- No auto-trading — all order execution is manual
- Signal limit — max 3 signals per day to enforce quality
- Hold time — max 30 minutes per position (scalping / intraday)
- Manual review — trader has final say on all entries