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DATA_PLATFORM_DESIGN.md

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+# Data Platform Architecture Design
+
+**Date**: 2025-01-27
+**Purpose**: Design document for unified data platform
+**Status**: Design Document
+
+---
+
+## Executive Summary
+
+This document outlines the design for a unified data platform that provides centralized data storage, analytics, and governance across all workspace projects.
+
+---
+
+## Architecture Overview
+
+### Components
+
+1. **Data Lake** (MinIO, S3, or Azure Blob)
+2. **Data Catalog** (Apache Atlas, DataHub, or custom)
+3. **Analytics Engine** (Spark, Trino, or BigQuery)
+4. **Data Pipeline** (Airflow, Prefect, or custom)
+5. **Data Governance** (Policies, lineage, quality)
+
+---
+
+## Technology Options
+
+### Data Storage
+
+#### Option 1: MinIO (Recommended - Self-Hosted)
+- S3-compatible
+- Self-hosted
+- Good performance
+- Cost-effective
+
+#### Option 2: Cloudflare R2
+- S3-compatible
+- No egress fees
+- Managed service
+- Good performance
+
+#### Option 3: Azure Blob Storage
+- Azure integration
+- Managed service
+- Enterprise features
+
+**Recommendation**: MinIO for self-hosted, Cloudflare R2 for cloud.
+
+---
+
+## Data Architecture
+
+### Data Layers
+
+1. **Raw Layer**: Unprocessed data
+2. **Cleansed Layer**: Cleaned and validated
+3. **Curated Layer**: Business-ready data
+4. **Analytics Layer**: Aggregated and analyzed
+
+### Data Formats
+- **Parquet**: Columnar storage
+- **JSON**: Semi-structured data
+- **CSV**: Tabular data
+- **Avro**: Schema evolution
+
+---
+
+## Implementation Plan
+
+### Phase 1: Data Storage (Weeks 1-2)
+- [ ] Deploy MinIO or configure cloud storage
+- [ ] Set up buckets/containers
+- [ ] Configure access policies
+- [ ] Set up backup
+
+### Phase 2: Data Catalog (Weeks 3-4)
+- [ ] Deploy data catalog
+- [ ] Register data sources
+- [ ] Create data dictionary
+- [ ] Set up lineage tracking
+
+### Phase 3: Data Pipeline (Weeks 5-6)
+- [ ] Set up pipeline orchestration
+- [ ] Create ETL jobs
+- [ ] Schedule data processing
+- [ ] Monitor pipelines
+
+### Phase 4: Analytics (Weeks 7-8)
+- [ ] Set up analytics engine
+- [ ] Create data models
+- [ ] Build dashboards
+- [ ] Set up reporting
+
+---
+
+## Data Governance
+
+### Policies
+- Data retention policies
+- Access control policies
+- Privacy policies
+- Quality standards
+
+### Lineage
+- Track data flow
+- Document transformations
+- Map dependencies
+- Audit changes
+
+### Quality
+- Data validation
+- Quality metrics
+- Anomaly detection
+- Quality reports
+
+---
+
+## Integration
+
+### Projects Integration
+- **dbis_core**: Transaction data
+- **the_order**: User data
+- **Sankofa**: Platform metrics
+- **All projects**: Analytics data
+
+### API Integration
+- RESTful APIs for data access
+- GraphQL for queries
+- Streaming APIs for real-time
+- Batch APIs for bulk
+
+---
+
+## Security
+
+### Access Control
+- Role-based access
+- Data classification
+- Encryption at rest
+- Encryption in transit
+
+### Privacy
+- PII handling
+- Data masking
+- Access logging
+- Compliance tracking
+
+---
+
+## Monitoring
+
+### Metrics
+- Data ingestion rate
+- Processing latency
+- Storage usage
+- Query performance
+
+### Alerts
+- Pipeline failures
+- Quality issues
+- Storage capacity
+- Access anomalies
+
+---
+
+**Last Updated**: 2025-01-27
+