Employee.Name := InputName;
Empployee.Address := InputAddress;
Employee.Phone := InputPhone;Supervisor.Title := InputTitle;
Supervisor.Department := InputDepartment;
Supervisor.Bonus := InputBonus;Basic
NewName = OldName
NewAddress = OldAddress
NewPhone = OldPhone
NewSSN = OldSSN
NewSex = OldSex
NewSalary = OldSalaryNumWithholdings
NewNumWithholdings = OldNumWithholdings' swap new and old employee data
PrevOldName = OldName
PrevOldAddress = OldAddress
PrevOldPhone = OldPhoe
PrevOldSSN = OldSSN
PrevOldSex = OldSex
PrevOldsalary = OldSalaryOldName = NewName
OldAddress = NewAddress
OldPhone = NewPhone
OldSSN = NewSSN