# Unified DBIS Financial Ontology (UDFO)

## Overview

UDFO is the global financial language of DBIS, used by all smart contracts, CBDC ledgers, regulatory engines, risk models, and cross-chain protocols. It creates universal definitions for multi-asset terms.

## Architecture

UDFO consists of three ontology domains:

### Domain 1 – Assets
- **FIAT**: Traditional government-issued currency
- **CBDC**: Central Bank Digital Currency
- **SSU**: Synthetic Settlement Unit
- **COMMODITY**: Physical or digital commodity token
- **SECURITY**: Tokenized security or financial instrument

### Domain 2 – Entities
- **SCB**: Sovereign Central Bank
- **BANK**: Private commercial or investment bank
- **INDIVIDUAL**: Individual person or wallet holder
- **INSTITUTION**: Corporate or institutional entity
- **CONTRACT**: Deterministic smart contract

### Domain 3 – Processes
- **SETTLEMENT**: Dual-ledger posting resulting in finality
- **ISSUANCE**: Creation of new asset units by authorized issuer
- **CONVERSION**: Exchange of one asset type for another
- **REDEMPTION**: Return of asset to issuer for underlying value
- **COLLATERALIZATION**: Use of asset as collateral for obligation

## API Endpoints

### Initialize UDFO
```http
POST /api/v1/udfo/initialize
```

### Get All Definitions
```http
GET /api/v1/udfo/definitions
```

### Get Assets
```http
GET /api/v1/udfo/assets
GET /api/v1/udfo/assets/:code
```

### Get Entities
```http
GET /api/v1/udfo/entities
GET /api/v1/udfo/entities/:identifier
```

### Get Processes
```http
GET /api/v1/udfo/processes
GET /api/v1/udfo/processes/:code
```

### Validate Ontology
```http
POST /api/v1/udfo/validate
```

## Usage Example

```typescript
import { udfoService } from '@/core/ontology/udfo';

// Initialize UDFO
await udfoService.initialize();

// Get asset definition
const asset = await udfoService.getAssetService().getAssetByCode('SSU');

// Validate smart contract against ontology
const validation = await udfoService.getValidatorService().validate({
  assetId: 'SSU',
  processId: 'SETTLEMENT',
  contractCode: contractCode,
});
```

## Database Models

- `UDFOAsset`: Asset definitions
- `UDFOEntity`: Entity definitions
- `UDFOProcess`: Process definitions
- `OntologyMapping`: Cross-domain mappings