For Object oriented analysis and design:

Consider a simple payroll system. Prepare an use case diagram and include the appropriate relationships (Extend, Include and generalization whatever is applicable) for the following use cases. If needed you can add an abstract parent for each use case generalization.

Add Deduction: Add another deduction type such as medical premium etc. for employees and incorporate deductions in subsequent pay checks

Drop Deductions: Remove the deduction type for the employees.

Sum Income: Total all income for a paycheck.

Sum deduction: Total all deductions for a pay check.

Compute net take home pay: Compute the total income less the total deduction for a pay check.

Compute charitable contributions: Total all contributions to charity for a paycheck.

Compute taxes: Compute all taxes for a pay check.

Compute retirement savings: Compute all contributions to retirement funds for a pay check.

Compute other deductions: Compute the total of all deductions other than charity, taxes and retirement for a paycheck.

Change Employee Name: Change employee name on the record.

Change Employee Address: Change Employee address on the record

Compute base pay: Compute the base pay of the employee for the paycheck.

Compute Overtime pay: Compute overtime pay of the employee for the paycheck.

Compute other pay: Compute all other income other than base pay and overtime for the employee.

Change method of Payment: Change the method of disbursing the paycheck such as cash, direct deposit and check.