A small film or organization uses a payroll program for calculating staff wages each month. Each employee has a unique payroll number and is paid a fixed hourly rate which maybe different for different employees . The system uses a master file containing long term details such as name, address,hourly, rate of pay and total pay for a year. The key field in the master file is the payroll number and the file is stored in this field. Each month a transaction file is produced containing details of the hours worked during that month by each employee.
(A) state the type of processing used in this application and explain why this type of processing is suitable.
(B) Describe the processing taking place each month when the payroll program is run start with unsorted transaction file and end after the master file has been updated the pay slips have been printed
(C) explain what would happen during the process if an employee's payroll number had been entered incorrectly into the transaction file