See below image for the Er examples for hotel management system diagram. This ER (Entity Relationship) Diagram represents the model of Hotel Management System Entity. The entity-relationship diagram of Hotel Management System shows all the visual instrument of database tables and the relations between Rooms, Payments, Hotel, Customers etc.
The main entities of the Hotel Room Management System are Hotel, Room, Booking, Payment, Customer and Hotel Employee. Hotel Entity : Attributes of Hotel are hotel_id, hotel_name, hotel_type, hotel_rent, hotel_description, hotel_address
The entity-relationship diagram of Hotel Booking System shows all the visual instrument of database tables and the relations between Booking, Hotel, Payments, Services etc. It used structure data and to define the relationships between structured data groups of Hotel Booking System functionalities.