Arlington Industries manufactures and sells engine parts for large industrial equipment.

The company employs more than $1,000$ workers for three shifts, and most employees

work overtime when necessary. Figure $17-10$ depicts the procedures followed to process payroll. Additional information about payroll procedures follows:

$$ The HRM department determines the wage rates of all employees. The process begins when a form authorizing the addition of a new employee to the payroll master

file is sent to the payroll coordinator for review and approval. Once the information

about the new employee is entered in the system, the computer automatically calculates the overtime and shift differential rates for that employee.

$$ A local accounting firm provides Arlington with monthly payroll tax updates, which

are used to modify the tax rates.

$$ Employees record their time worked on time cards. Every Monday morning, the

previous week$$s time cards are collected from a bin next to the time clock, and new

time cards are left for employees to use. The payroll department manager reviews

the time cards to ensure that hours are correctly totaled; the system automatically

determines whether overtime has been worked or a shift differential is required.

$$ The payroll department manager performs all the other activities depicted in

Figure $17-10.$

$$ The system automatically assigns a sequential number to each payroll check. The

checks are stored in a box next to the printer for easy access. After the checks are

printed, the payroll department manager uses an automatic check$-$signing machine

to sign the checks. The signature plate is kept locked in a safe. After the checks

have been signed, the payroll manager distributes the paychecks to all first$-$shift

employees. Paychecks for the other two shifts are given to the shift supervisor for

distribution.

$$ The payroll master file is backed up weekly, after payroll processing is finished.

a$.$ Identify and describe at least three weaknesses in Arlington Industries$$ payroll

process.

b$.$ Identify and describe at least two different areas in Arlington$$s payroll processing

system where controls are satisfactory. $($CMA Examination, adapted