## 3. System Overview

### 🧩 Core Idea

A **geo-temporal resource graph**:

* **Nodes:** 2.1M+ industrial entities across EU-27
* **Edges:** €50B+ annual potential resource exchanges
* **Resources:** typed and parameterized flows (heat, water, CO₂, chemicals, by-products, etc.)
* **Engine:** spatial and semantic matching + economic evaluation

*For detailed market opportunity analysis, see [01_market_analysis.md](01_market_analysis.md)*

**Scale Metrics**:
- **Initial Target**: 500 businesses, 50 cities (Year 1)
- **Growth Target**: 5,000 businesses, 200 cities (Year 3)
- **Performance Goals**: <2s match response, >85% uptime, >99% data accuracy
- **Economic Impact**: €500M+ annual savings, 100k+ tons CO₂ reduction (Year 1)

*For detailed project roadmap and metrics, see [28_project_roadmap.md](28_project_roadmap.md)*

The backend continuously updates the graph as new data streams (meters, ERP feeds, or manual inputs) arrive, and computes new match opportunities.

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