About This Architecture

Hospital Management System ER diagram models core clinical operations through six interconnected entities: PATIENT, DOCTOR, APPOINTMENT, DEPARTMENT, and PRESCRIPTION. Relationships flow from PATIENT and DOCTOR through APPOINTMENT to PRESCRIPTION, with DEPARTMENT governing doctor assignments via foreign key constraints. This normalized schema enforces referential integrity, separates concerns across clinical workflows, and supports queries for patient history, doctor schedules, and medication tracking. Fork and customize this diagram on Diagrams.so to adapt it for your hospital's specific departments, additional entities like billing or lab results, or to export as .drawio for use in database design tools. The mandatory/optional relationship indicators (solid/dashed lines) clarify which associations must exist versus those that may be null.

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What is the best database schema design for a hospital management system?

This ER diagram provides a normalized schema separating PATIENT, DOCTOR, APPOINTMENT, DEPARTMENT, and PRESCRIPTION entities with clear primary and foreign key relationships. The design enforces referential integrity, supports complex queries across patient history and doctor schedules, and scales for multi-department hospitals while maintaining data consistency.