This ER diagram for human resource management consists of different entities and their linkages. In this case, the employee is an anchor entity that connects other entities like department, job, leave, attendance, and training. Each entity has its attributes, for example employee table has the employee ID, name, and job title, while the department table has the dep ID and manager ID.
The ER diagram forms the foundation of any successful human resource system by illustrating how employees relate to each other as well as how they are managed in terms of attendance, leave management as well as training schedules.