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Explain advanced domain-driven design (DDD) architecture in large PHP enterprise systems.
Updated May 24, 2026
Short answer
DDD structures complex PHP systems around business domains using aggregates, entities, and bounded contexts.
Deep explanation
Domain-Driven Design focuses on aligning software architecture with business complexity.
Core concepts:
- Entities
- objects with identity
- Value objects
- immutable data structures
- Aggregates
- consistency boundaries
- Repositories
- abstraction over persistence
- Bounded contexts
- isolated domain models
Architecture benefits:
- reduces coupling
- improves maintainability
- aligns with business language
Challenges:
- overengineering simple systems
- context mapping complexity
- data duplication across contexts…
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