itsourcecode.com hosts 40+ free Data Flow Diagram (DFD) examples for BSIT capstone projects (2026): complete Level 0 (context), Level 1 (high-level processes), and Level 2 (decomposed sub-processes) DFDs for the most common capstone domains. Each is downloadable and capstone-ready for Chapter 3 documentation. Browse by system below.
What is a Data Flow Diagram (DFD)?
A Data Flow Diagram visualizes how data moves through a system, what processes transform it, where it is stored, and which external entities provide or consume it. DFDs use four symbols: External Entity (rectangle, user, supplier, admin), Process (circle or rounded rectangle, what the system does), Data Store (open rectangle, database or file), and Data Flow (arrow, direction of data movement). DFDs are required in Chapter 3 of every BSIT capstone documentation in the Philippines and most universities globally.
The 3 DFD levels you need for capstone
Level 0 (Context Diagram): one process bubble representing the entire system, with all external entities (users, admins, suppliers) and their high-level data flows. Shows scope.
Level 1: decomposes the Level 0 process into 5-8 major sub-processes (Login, Manage Inventory, Generate Report, Process Order, etc.) with data stores between them.
Level 2: further decomposes each Level 1 process. Only do this for the 2-3 most complex sub-processes. Going deeper than Level 2 is over-scope for capstone.
Featured DFD examples by system domain
🎓 School, Student & Library
Student Management System DFD
Library Management System DFD
School Management System DFD
College Management System DFD (Levels 0, 1, 2)
University Management System DFD
Online Examination System DFD
Hostel Management System DFD
Employee Attendance DFD
🏥 Hospital, Pharmacy & Healthcare
Hospital Management System DFD
Doctor Appointment System DFD
Pharmacy Management System DFD
Blood Bank Management DFD
🍽️ Hotel, Restaurant & Hospitality
Hotel Management System DFD
Hotel Reservation DFD
Restaurant Management DFD
Online Movie Ticket Booking DFD
🛒 E-commerce, Shop & Inventory
Online Shopping Cart DFD
Inventory Management System DFD
E-commerce Website DFD
🏦 ATM, Banking & Finance
ATM System DFD
Bank Management System DFD
Loan Management System DFD
Employee Management DFD
🚗 Transport, Travel & Reservation
Railway Reservation System DFD
Railway Reservation DFD (alt)
Bus Reservation System DFD
Airline Reservation DFD (Levels 0,1,2)
Car Rental System DFD (Levels 0,1,2)
🤖 AI / Recognition & Authentication
Face Mask Detection DFD (Levels 0,1,2)
Face Recognition System DFD
Login System DFD
Login and Registration DFD
🛡️ Government & Civic
Barangay Information System DFD (Levels 0,1,2)
About this DFD collection
Curated since 2015 by PIES Information Technology Solutions, Binalbagan, Negros Occidental, Philippines. Each DFD has been used in defended BSIT capstones. Used by 12,000+ BSIT students monthly. Pair each DFD with the matching ER Diagram and Use Case Diagram for a complete Chapter 3 documentation set.
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UML Diagrams Library, parent collection, 300+ diagrams
ER Diagrams, 35+ ERDs paired with these DFDs
Use Case Diagrams, 40+ Use Case diagrams
Class Diagrams, 30+ Class diagrams
Activity Diagrams, 30+ Activity diagrams
Sequence Diagrams, 35+ Sequence diagrams
Components Diagrams
Deployment Diagrams
Final Year Projects
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