Version: 1.0.0
Purpose
The Database Architecture defines the logical and physical structure of the product's data storage solution.
Its purpose is to establish a scalable, secure, maintainable, and performant data architecture that supports the approved Product Requirements while remaining aligned with the overall system architecture.
The Database Architecture serves as the authoritative reference for database implementation throughout the lifecycle of the project.
When This Artifact Is Created
The Database Architecture is created during the Architecture phase following approval of the Product Requirements, Data Dictionary, and Information Architecture.
It is updated whenever approved architectural changes impact the data model.
Dependencies
Requires:
- Source of Truth
- Product Bible
- Product Requirements
- Product Vocabulary
- Data Dictionary
- Information Architecture
- Decision Log
Referenced By:
- Build Master Plan
- Implementation
- Validation
- Evolution
AI Generation Instructions
Design a database architecture that supports current business requirements while allowing for future growth.
Prioritize simplicity, normalization where appropriate, performance, security, scalability, and maintainability.
Every architectural decision should support documented business requirements and approved governance artifacts.
Required Sections
Executive Summary
Provide an overview of the database architecture.
Database Platform
Document the selected database platform and the rationale for its selection.
Architectural Overview
Describe the overall database architecture including:
- Primary database
- Supporting databases
- External data stores
- Caching layers
- File storage
Entity Relationships
Document relationships between business entities.
Reference the Data Dictionary where appropriate.
Physical Schema
Document:
Tables
Views
Indexes
Constraints
Keys
Relationships
Data Integrity
Describe:
Referential integrity
Validation strategy
Transaction management
Concurrency considerations
Security
Document:
Authentication
Authorization
Encryption
Sensitive data handling
Audit strategy
Row-level security (if applicable)
Performance
Document:
Index strategy
Query optimization
Caching
Partitioning
Archiving
Expected growth
Backup and Recovery
Describe:
Backup strategy
Recovery objectives
Disaster recovery considerations
Integration
Document how external systems interact with the database.
Future Considerations
Document anticipated future architectural enhancements.
Validation Criteria
The Database Architecture is complete when:
Business entities are fully represented.
Relationships are consistent with the Data Dictionary.
Security has been documented.
Performance considerations have been evaluated.
Scalability has been considered.
The human approves the architecture.
Maintenance
Review the Database Architecture whenever:
Business entities change.
New integrations are introduced.
Performance requirements change.
Security requirements change.
Implementation identifies architectural improvements.
The Database Architecture should remain synchronized with all governance artifacts throughout the lifecycle of the project.