stock-bot/docs/data-services/README.md

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# Data Services
Data services manage data storage, processing, and discovery across the trading platform, providing structured access to market data, features, and metadata.
## Services
### Data Catalog
- **Purpose**: Data asset management and discovery
- **Key Functions**:
- Data asset discovery and search capabilities
- Metadata management and governance
- Data lineage tracking
- Schema registry and versioning
- Data quality monitoring
### Data Processor
- **Purpose**: Data transformation and processing pipelines
- **Key Functions**:
- ETL/ELT pipeline orchestration
- Data cleaning and normalization
- Batch and stream processing
- Data validation and quality checks
### Feature Store
- **Purpose**: ML feature management and serving
- **Key Functions**:
- Online and offline feature storage
- Feature computation and serving
- Feature statistics and monitoring
- Feature lineage and versioning
- Real-time feature retrieval for ML models
### Market Data Gateway
- **Purpose**: Market data storage and historical access
- **Key Functions**:
- Historical market data storage
- Data archival and retention policies
- Query optimization for time-series data
- Data backup and recovery
## Architecture
Data services create a unified data layer that enables efficient data discovery, processing, and consumption across the platform. They ensure data quality, consistency, and accessibility for both operational and analytical workloads.