Veterinary clinic ER diagram modeling five core entities: Proprietario (owner), Pet, TipoPet (pet type), Visita (visit), Veterinario (veterinarian), and Especialidade (specialty). Proprietarios link to Pets via foreign key, Pets reference TipoPet and connect to Visitas, Visitas associate with Veterinarios, and Veterinarios map to Especialidades through a junction table. This normalized schema eliminates redundancy, enforces referential integrity, and supports queries across owner-pet-visit-veterinarian workflows. Fork and customize this diagram in Diagrams.so to adapt it for your clinic's specific requirements, then export as SQL DDL or .drawio for database implementation. The composite primary key on Veterinario_Especialidade prevents duplicate specialist assignments.