# Domain Layer

- [Entities & Aggregate Roots](/software-development/.net-technology/advanced/abp-framework/ddd/domain-layer/entities-and-aggregate-roots.md)
- [Value Objects](/software-development/.net-technology/advanced/abp-framework/ddd/domain-layer/value-objects.md)
- [Repositories](/software-development/.net-technology/advanced/abp-framework/ddd/domain-layer/repositories.md)
- [Domain Services](/software-development/.net-technology/advanced/abp-framework/ddd/domain-layer/domain-services.md)
- [Specifications](/software-development/.net-technology/advanced/abp-framework/ddd/domain-layer/specifications.md)