Draw an ER Diagram with below descriptions

1.Define ER Model 2.Identify Entities 3.Identify Attributes 4.Identify Relationships 1.Inventory Control Management (Reg no. 1,11,21,31,41,51,61) 2. Library Management System (2, 22,32,42,52) 3. Student Database Management(3, 23,33,43,53) 4.Payroll Management System(4, 14,24,34,44,54,64) 5. Hospital Management System(5, 15,25,35,45,55) 6. Centralized College Database(6, 16,26,36,46,56) 7. Online Blood Donation Management System (7, 17,27,37,47,57) 8. Bank management system(8, 18,28,38,48,58) 9. Library management system(9, 19,29,39,49,59) 10. Electricity bill management system (10, 20,30,40,50,60) 11. Payroll management system( lateral students)