Accounting Information Systems, 9e 21
FIGURE SM-14.6 Problem 2, Part c SolutionAnnotated Systems Flowchart for Oxford Supplies
22 Solutions for Chapter 14
FIGURE SM-14.6 Problem 2, Part c SolutionAnnotated Systems Flowchart for Oxford Supplies (continued)
Accounting Information Systems, 9e 23
Nerd Brigade Solutions
P 14-1 ANS. a. Table of Entities and Activities for Nerd Brigade
Entities
Para
Activities
Computer
2
1. Print time sheets.
Department supervisors
2
7. Review and sign time sheets.
2
8. Return time sheets to the payroll department.
Payroll department
2
9. Key time sheets.
2
10. File time sheets alphabetically by department.
Computer
3
Computer operator
3
13. Obtain a check signing machine.
3
14. Sign checks.
3
16. Give payroll reports to the payroll department.
Cashier
4
17. Check total and number of checks against the payroll register.
4
18. Send checks and stubs to the department supervisors
Department supervisors
4
20. Give paychecks and stubs to employees.
Banks
4
Payroll department
2
2. Receive time sheets from IT.
2
3. Distribute time sheets.
Employees
2
5. Fill in time sheets (each day).
2
6. Give time sheets to the supervisor (at end of week).
24 Solutions for Chapter 14
Payroll
department
Payroll
Payroll
reports
Payments and
payment advice
FIGURE SM-14.7 Problem 1, Part b SolutionContext Diagram for Nerd Brigade
Accounting Information Systems, 9e 25
Employee/payroll
master data
Curre nt
week‘s pay file
Completed
time shee ts
Blank
time shee ts
4.0
Employee
3.0
Department
supervisors
Blank
time shee ts
Blank
time shee ts
Completed
time shee ts
Completed
time shee ts
5.0
Computer
operator
Payroll
output
Payroll
department
Payroll
reports
NOTE: Payroll output include s:
Checks with stubs
Stubs for dire ct deposit (DD) checks
Deposit slips
Checks for banks
Check register
Payroll reports
Curre nt week’s
payroll activity data
FIGURE SM-14.8 Problem 1, Part c SolutionPhysical DFD for Nerd Brigade
26 Solutions for Chapter 14
P 14-1 d. Table of Entities and Activities (Annotated) for Nerd Brigade
Entities
Para
Activities
Process
Computer
2
1. Print time sheets.
Payroll department
2
9. Key time sheets.
2.0 Prepare payroll.
2
10. File time sheets alphabetically.
Computer
3
11. Create current week’s pay file.
3
12. Print payroll output.
Computer operator
3
14. Sign checks.
Employees
2
5. Fill in time sheets.
Department supervisors
2
7. Review and sign time sheets.
Accounting Information Systems, 9e 27
1.0
Record
hours
Approved
time re cord
Time record
history file
3.0
Distribute
payroll
Payments,
payment advice ,
payroll reports,
payroll summary,
deposit and payment
data
Payroll
department
Payroll
reports
Payments and
payment advice
Current we ek‘s
payroll activity
data
FIGURE SM-14.9 Problem 1, Part e SolutionLogical DFD for Nerd Brigade
28 Solutions for Chapter 14
Payroll
department
Department
supe rvisor
Computer
operations
Start
Pre pare time
she e ts
Time shee ts Time shee ts Time shee ts P. 2,
A
Revie w and
sign
Completed and
approv ed
time she ets
Create current
wee k‘s payroll
activity data
Curre nt
wee k‘s
payroll
activity data
Create current
wee k‘s pay data
Curre nt
wee k‘s pay
Accepte d
input
Completed and
approv ed
time she ets
P. 2,
B
Employee
FIGURE SM-14.10 Problem 2, Part a SolutionSystems Flowchart for Nerd Brigade
Accounting Information Systems, 9e 29
Cashier
Employee
P. 1,
AP. 1,
B
P. 1,
A
Complete d
time she et
Payroll
reports
Computer
operator
Payroll
department
Checksigning
machine obtained
from cashier
Check registe r
Banks
Signed employee
checks with stubs,
stubs for DD checks
P. 1,
B
DD de posit slips
and bank che cks
FIGURE SM-14.10 Problem 2, Part a SolutionSystems Flowchart for Nerd Brigade (continued)
30 Solutions for Chapter 14
Control Goals of the Nerd Brigade Payroll Business Process
Control Goals of the Operations Process
Control Goals of the Information Process
Ensure
effectiveness of
operations
Ensure
efficient
employment
of resources
(people and
computers)
Ensure security
of resources
(cash, employee/
payroll master
data)
For time sheet data
inputs, ensure:
For
employee/payr
oll master
data, ensure:
Recommended control plans
A
B
C
IV
IC
IA
UC
UA
Present controls
P-1: Automatic generation of turnaround
documents (time sheets)
P-1
P-1
P-4: Prepare miscellaneous reports
P-4
P-4
P-4
P-4
P-5: Checks are signed with a check-signing
machine
P-5
P-6: Manual agreement of batch totals
P-6
P-6
P-6
P-6
Missing controls
P-2: Approve time attendance sheets
P-2
P-2
P-3: Enter turnaround documents (time sheets)
P-3
P-3
P-3
Accounting Information Systems, 9e 31
Control Goals of the Nerd Brigade Payroll Business Process
Control Goals of the Operations Process
Control Goals of the Information Process
Ensure
effectiveness of
operations
Ensure
efficient
employment
of resources
(people and
computers)
Ensure security
of resources
(cash, employee/
payroll master
data)
For time sheet data
inputs, ensure:
For
employee/payr
oll master
data, ensure:
Recommended control plans
A
B
C
IV
IC
IA
UC
UA
M-2: Populate input screens with master data
M-2
M-2
M-2
M-2
Legend:
Possible effectiveness goals include the following:
A Provide employees with timely paychecks
IV = input validity
IC = input completeness
IA = input accuracy
FIGURE SM-14.11 Problem 2, Part b Solution (Partial)Control Matrix for Nerd Brigade
32 Solutions for Chapter 14
Exhibit SM-14.2 Problem 2, Part b Solution (Partial)Explanation of Cell Entries for
Control Matrix in Figure SM-14.11
P-1: Automatic generation of turnaround documents (time sheets).
Effectiveness goal A, efficient employment of resources: The turnaround
documents (time sheets) are printed by the computer. Therefore, only valid
employees receive a time sheet.
P-2: Approve attendance time sheets.
Input validity: Before they are forwarded to the payroll department for processing,
time sheets are approved by department supervisors. These written approvals help
P-3: Enter turnaround documents (time sheets).
P-4: Prepare miscellaneous reports.
Effectiveness goals B and C: Various reports are prepared to comply in a timely
manner with tax and other government regulations.
Employee/payroll master data, update completeness, update accuracy: The
reports contain data from the employee/payroll master data. Review of these
reports should detect any incomplete or inaccurate data.
Accounting Information Systems, 9e 33
control goals of input completeness (all source documents are processed once and
only once), input validity and resource security (only valid source documents
comprise the batch that is processed), and input accuracy (data elements
appearing on the source documents are processed correctly).
Update completeness, update accuracy: Because totals are reconciled after the
master file update, we have made entries in the columns for UC and UA.
M-2: Populate input screens with master data.
Effectiveness goal A, efficient employment of resources: Automatic population of
inputs from the employee/payroll master data would result in fewer keystrokes,
M-3: Reconcile attendance time cards and job time tickets.
Effectiveness goal A, efficient employment of resources, input validity, input
completeness, input accuracy: Job time tickets are not mentioned. If they are
reconciled with the time sheets, we would determine that the time sheets
accurately reflect hours actually worked (validity). By determining that we have a
34 Solutions for Chapter 14
Where paper documents are employed, we might find document design,
written approvals, and turnaround documents.