1. Computerized Payroll
System
for Derf’s Manpower and
General Services Phils, Inc.,
DEVELOPERS :
Dandamun, Raihana S.
Fernandez, Apols V.
Gicaro, Mark Francis G.
Tancinco, Angelique M.

2. Introduction:
• Derf’s Manpower and General Services, Phils., Inc. is a private corporation
duly registered with the Securities and Exchange Commission
(SEC), Bureau of Internal Revenue (BIR), and the Department of Labor and
Employment (DOLE).
• At present Derf’s have the following clients: SM Homeworld, Pollandre
Manufacturing Corp., Blue Mountain Worldwide Distribution Inc., Green
Light Recreative, Apollo Lightning Inc., and Enderun Colleges.
• Derf’s Manpower and General Services, Phils., Inc. had been the priority of the
developers in creating a computerized payroll system for the benefit of the
company and its employees, as well as to provide a payroll system that offers
fast transactions, generates reports and lessens the time consumed in preparing
the payroll.

3. GENERAL PROBLEM:
The Derf’s Manpower and General
Services, Phils., Inc. is having a hard time in
manually checking each daily time record
of employee, monitoring of previous
loans, cash advances and charges and
preparing essential reports.

4. SPECIFIC PROBLEMS:
• The Derf’s Manpower and General Services, Phils., Inc.
consumes time and effort in manually checking each daily
time record of the employee.
• The Derf’s Manpower and General Services, Phils., Inc. is
having difficulties in making reports because of the
voluminous files stored and placed in the filing cabinets.
• The Derf’s Manpower and General Services, Phils., Inc. is
having a hard time in monitoring the previous loan, cash
advances, and charges of the employee due to unorganized
employee records, wherein the Staff has to find a specific
employee record on a different folders.

5. GENERAL OBJECTIVE:
To design and develop a Computerized
Payroll System for Derf’s Manpower and
General Services, Phils., Inc. that provides fast
transactions, minimize the manual checking of
employees daily time record, monitors
previous employee loans, cash advances and
charges, and can generate essential reports.

6. SPECIFIC OBJECTIVES:
• To minimize the manual checking of each daily time
records of the employee.
• To develop a module that will generate essential reports.
• To develop a module that will monitor the status of
employee’s loan and other deductions such as cash
advances and charges.

7. SCOPE AND LIMITATIONS:

8. SCOPE:
• It covers the time-in and time-out of employees through
biometrics, specifically through a fingerprint scanner
technology.
• It also covers the process of preparing the pay slip of each
employee, monitors loans, cash advances, charges, keeping the
records and easily computes the basic pay, regular overtime
pay, overtime with night differential pay, pay during day
off, special and legal holiday pay, gross pay, SSS
contributions, PhilHealth contributions, Pag-Ibig
contributions, admin fee, cash bond, loans, cash
advances, charges deductions and net pay.

9. LIMITATIONS:
• The system cannot generate report of appraisals and
evaluation reports of the employee because it was not
included in the system.
• The system will only be used for payroll transactions by
the company specifically Derf’s Manpower and General
Services, Phils., Inc. It will not be employed in any other
company other than Derf’s Manpower

10. ENTITY RELATIONSHIP DIAGRAM

11. Figure 3.2.4.1
ERD Illustration of
Logical Diagram

12. Figure 3.2.4.2 E
RD Illustration of
Physical Diagram
(A)

13. Figure 3.2.4.3
ERD Illustration of
Physical Diagram (B)

14. DATA FLOW DIAGRAM

15. Figure 3.2.5.1
DFD Context
Level

16. Figure 3.2.5.2
DFD (A)

17. Figure 3.2.5.3
Exploded DFD (B)

18. Figure 3.2.5.4
Exploded DFD (C)

19. Figure 3.2.5.5
Exploded DFD (D)

20. COMPUTATIONS

21. Salary Computation
Descriptions Computations
Total No. of regular days worked Total No. of regular days worked * rate = Basic Pay
Regular Overtime (hours) (Rate/8) * 1.25 (constant) = OT Pay
Overtime with Night Differential (Rate/8) * 1. 35 (constant) = OTWND Pay
Duty on Day off Rate * 1. 3 = DOD Pay
Legal Holidays Rate * 200 % = Legal Holiday Pay
Special Holidays Rate * 1.3 % = Special Holiday Pay
Gross Pay Basic Pay + OT Pay + OTWND Pay + DOD Pay + Legal
Holiday Pay + Special Holiday Pay = Gross Pay
SSS Contributions Employee Share (depends on compensation range
per month) / 26 (employees regular work days per
month) = result * total no. of regular days worked

22. PhilHealth Contributions Employee Share (depends on compensation range
per month) / 26 (employees regular work days per
month) = result * total no. of regular days worked
Pag-Ibig Contributions Employee Share (depends on compensation range
per month) / 26 (employees regular work days per
month) = result * total no. of regular days worked
Cash Bond Basic Pay * 5% = Cash Bond
Admin Fee Basic Pay * 2% = Admin Fee
Lates (Rate/8 hours) / 60 minutes = Late
Other Deductions Cash Advance + Charges + Loans = Other Deductions
Total Deductions SSS co + PhilHealth/Pag-Ibig Contributions + Cash
Bond + Admin Fee + Late + Other Deductions =
TotalDeductions
Net Pay Gross Pay – Total Deductions = Net Pay

23. 13th Month Pay Computation
13th Month Pay Computation Daily rate * 26 regular working
days of an employee per month /
313, regular working days of an
employee per year = result * total
number of days worked by the
employee = 13th Month Pay .