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Draw a use$-$case diagram for the following Employee Management System description.

Once an employee joins the company HR manager introduces him$/$her to all other employees in the

department he$/$she is allocated to work. Then the employee is given papers to fill out his$/$her

information. The HR manager hands over the filled forms to the data entry operator for the

registration of the newly joined employee.

When an employee joins, the HR manager assigns a grade to each employee. The accountant is

responsible to calculate the employee's net salary. The calculation of net salary varies according to

the grades assigned.

When an employee leaves the organization, the HR manager can delete the employee record

immediately or the record can be retained for one year as a pending record. Employees are eligible

for promotions according to their performance. So$,$ an employee$$s details can be changed, when an

employee is promoted to a higher grade. Updating the employee details is the responsibility of the

HR manager.

Employees can request leave through the system. To request a leave from the system, the employee

must log in$.$ The Senior HR manager approves the requested leave of the employees in the

organization. The Senior HR manager has the ability to generate attendance reports, salary summary

reports and monthly reports. Employees are given $21$ days of leave, made up of seven $(7)$ days of

casual leave and $14$ days of annual leave. When an employee requests leave, the system checks for

the leave type and it automatically forwards the request to the Senior HR manager. Then the Senior

HR manager approves the requested leave. Employees can view their salary details online if they have login