video1.0<iframe src="https://www.loom.com/embed/df9030ede7aa4fc29e9b670c35241e93" frameborder="0" width="1920" height="1440" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>14401920Loomhttps://www.loom.com14401920https://cdn.loom.com/sessions/thumbnails/df9030ede7aa4fc29e9b670c35241e93-da9cbc7a74294cbe.gif135.718In this video, I present the updated ER diagram for our Doctor Appointment System, highlighting key entities like User, Patient, Availability, Doctor, and Appointment. Each User is linked to one Patient, and a Patient can book multiple appointments, establishing a one-to-many relationship. The Doctor entity tracks doctor information and their appointments, while the Availability entity defines the time slots for each doctor. Importantly, each appointment uses one availability slot, creating a one-to-one relationship. Please review the diagram and let me know if you have any questions or feedback.