42 entity relationship diagram for hospital management system
An internal entity is an entity within the system that transforms data.To represent the physical design of the system, we use diagrams like data flow diagrams, use case diagrams, etc. 15 [Chapter Three] 3.2 Feasibility Study Depending on the results of the initial investigation, the survey is now expanded to a more detailed feasibility study. The entity-relationship diagram of Hospital Management System shows all the visual instrument of database tables and the relations between Patient, Nurses, Hospitals, Medicines etc. It used structure data and to define the relationships between structured data groups of Hospital Management System functionalities. ER Diagram stands for Entity Relationship Diagram, also known as ERD is a diagram that displays the relationship of entity sets stored in a database. In other words, ER diagrams help to explain the logical structure of databases. ER diagrams are created based on three basic concepts: entities, attributes and relationships. Ent...