[[Entity|Entities]] represent mutable domain concepts with consistent identity, protecting invariants and enforcing business rules. [[Factory|Factories]] handle object creation, while [[Repository|Repositories]] abstract the persistence logic of [[Aggregate|Aggregates]]. Entities should not depend on or reference Factories or Repositories, as this violates the [[Separation of Concerns (SoC)]] principle. Coupling Entities with Factories or Repositories introduces technical details into the [[Domain Model]], reducing its clarity and reusability. Dependence on Factories or Repositories introduces technical details into the [[Domain Model]], polluting it. By keeping Factories and Repositories separate, Entities remain more reusable and easier to test, as their behavior is isolated from object creation and persistence concerns.