Biometrics and Payroll System

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RJL Payroll and Biometrics System

Requirements Modeling

BIOMETRICS

• Output
The biometrics system must provide a complete record of the employee’s attendance.

• Input
The system receives the scanned fingerprint of the employee.

• Process
The system matches the fingerprint with the employee’s file and records the time-in and time-out.

• Performance
The system must produce accurate hours worked by the employee.

• Controls
The chief accountant must be the only person accessible in the chips of the biometrics.

PAYROLL

• Output
The payroll system must produce a payroll summary every 15 days; and pay slip of the employees.

• Input
The system must get the employee payroll information for the calculation of salaries.

• Process
The payroll system must calculate employee salaries base on work hours plus increases and deductions.

• Performance
The system must provide a payroll summary every 15 days for the preparation of the pay slips.

• Controls
The chief accountant must be the only person who can update the allowances, bonuses and tax rates.

Context Diagram Payroll and Biometric System

Diagram 0 for Payroll System

T1 Employee

Diagram 0 DFD for Biometrics System

T1 Employee

T2 Attendance

FINGERPRINT MATCHING DATABASE

Biometrics System Database

DATADICTIONARY

|Label: employee identification |Table: tblEmployee | |Module: payroll system, biometrics system |Alias: empID | |Type and Length: 8T |Default value: RJL000-00 | |Source: employee file |Acceptable value: none | |Security: chief accountant |User responsibility: chief accountant | |Description and comments: | | |None | |

|Label: employee surname |Table: tblEmployee | |Module: payroll system, biometrics system |Alias: empSurname | |Type and Length: 15T |Default value: none | |Source: employee file |Acceptable value: none | |Security: chief accountant |User responsibility: chief accountant | |Description and comments: | | |None | |

|Label: employee given name |Table: tblEmployee | |Module: payroll system, biometrics system |Alias: empGivenname | |Type and Length:15T |Default value: none | |Source: employee file |Acceptable value: none | |Security: chief accountant...
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