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DATA FLOW DIAGRAM EXAMPLES

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Presentation on theme: "DATA FLOW DIAGRAM EXAMPLES"— Presentation transcript:

1 DATA FLOW DIAGRAM EXAMPLES

2 ORDER SYSTEM

3

4

5

6

7 PAYROLL SYSTEM

8 Context-Level Diagram
Employee Payroll System Employee Tax Form Payroll Report Time Sheet Employee Payroll Check Employee Accounting Department

9 Employee Payroll Record
Level-0 DFD 1.0 Create Weekly Payroll Record Employee Data File S1 S2 2.0 Compute Paycheck 3.0 Prepare Summary 4.0 Tax Form Accounting Department Employee Record Paycheck Data Payroll Record Payroll Report Employee Paycheck Employee Tax Form Time Sheet Hours Worked Employee Payroll Record

10 Level-1 DFD Employee Accounting Department 1.0 Create Weekly Payroll
Record Employee Data File S1 Employee Tax Form Payroll Data File S2 2.1 Compute Gross Pay 2.3 Check 2.2 Net 3.2 Print Summary 3.1 Sort Records by Employee 4.2 Tax Form 4.1 Calculate Deductions Employee Paycheck Employee Payroll Time Sheet Employee Record Gross Pay Data Net Pay Hours Worked Payroll Record Sorted Records Payroll Report Employee Accounting Department

11 COURSE REGISTRATION SYSTEM

12 Context level Diagram Professor Student Registrar Class roster
Class Request Course Registration System Student Payment Receipt Process numbered 0 Student Schedule Registrar Enrollment statistics

13 Student Student Professor Registrar 1.0 Register Student for Course
Payment Class Request Receipt 1.0 Register Student for Course 2.0 Collect Student Fee Payment D1 Student Class Records Payment Information Student and Course Data Student Class Record D2 Student Payments Student Class Record Student Class Record Student Class Record 3.0 Produce Student Schedule 4.0 Produce Class Roster 5.0 Produce Enrollment Report Enrollment Report Student Schedule Class Roster Student Professor Registrar

14 سجلات الطلاب والمقررات
الطالب الدفع طلب دراسة فصل دراسي فاتورة 1.0 تسجيل الطالب للمقرر 2.0 جمع الرسوم من الطلاب D1 سجلات الطلاب والمقررات معلومات الدفع بيانات الطلاب والمقررات سجل بيانات الطالب و الفصل الدراسي D2 فواتير الطلاب سجل بيانات الطالب و الفصل الدراسي سجل بيانات الطالب و الفصل الدراسي سجل بيانات الطالب و الفصل الدراسي 3.0 إنتاج جدول الطالب 4.0 إنتاج جدول الفصل الدراسي 5.0 إنتاج تقارير التسجيل تقارير التسجيل جدول الطالب جدول الفصل الطالب الاستاذ المسجل

15 THE END

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