Activity Diagram for School Management System
The School Management System Activity Diagram is a designed illustration that provides the behavioral aspect of system development. It shows the system and user interaction as well as the flow …
Activity Diagram Examples: 30+ Free UML Activity Diagrams for BSIT Capstones (2026)
itsourcecode.com hosts 30+ free Activity Diagram examples for BSIT capstone projects (2026): complete UML activity diagrams showing workflow logic, decision branches, and process flows for the most common capstone domains. Each is capstone-ready for Chapter 3 documentation.
What is an Activity Diagram?
An Activity Diagram is a UML behavioral diagram that models the flow of activities within a process, think of it as a flowchart with UML notation. Key elements: Initial Node (filled black circle, start), Activity (rounded rectangle, action), Decision Node (diamond, branch), Merge Node (diamond, converge), Fork/Join (thick black bar, parallel activities), Final Node (circled black dot, end). Activity diagrams show HOW the system behaves, complementing Use Case diagrams which show WHAT it does.
When to use Activity Diagrams in capstone
Chapter 3 (Methodology): model the main workflows your system supports (Login flow, Order processing, Payment, Approval).
Decision-heavy processes: when a workflow has multiple if/else branches, the activity diagram is clearer than text.
User onboarding flows: registration, verification, first-use guides.
Parallel processing: fork/join shows operations that happen simultaneously (e.g., send SMS + send email + log to database all in parallel).
Featured Activity diagrams by system domain
🎓 School, Student & Library
Student Enrollment Activity
Student Management Activity
School Management Activity
College Management Activity
University Management Activity
Library Management Activity
Attendance Management Activity
Online Examination Activity
Course Registration Activity
Hostel Management Activity
🏥 Hospital & Blood Bank
Hospital Management Activity
Blood Bank Management Activity
🍽️ Hotel, Restaurant & Hospitality
Hotel Management Activity
Hotel Room Booking Activity
Restaurant Management Activity
Online Food Ordering Activity
🛒 E-commerce, Shop & Inventory
Online Shopping System Activity
Shopping Cart Activity
E-commerce Website Activity
Point of Sale Activity
Inventory Management Activity
🏦 ATM, Banking & Payroll
ATM Management Activity
Bank Management Activity
Online Banking Activity
Credit Card Processing Activity
Payroll Management Activity
Employee Management Activity
🚗 Transport, Travel & Reservation
Railway Reservation Activity
Airline Reservation Activity
Car Rental Activity
🔐 Authentication & AI
Login and Registration Activity
Login Page Activity
Face Recognition System Activity
About this Activity diagram collection
Curated since 2015 by PIES Information Technology Solutions, Binalbagan, Negros Occidental, Philippines. Used by 12,000+ BSIT students monthly. Pair each Activity diagram with the matching Use Case and Sequence Diagram for a complete Chapter 3 documentation set.
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Activity Diagram for Online Food Ordering System
Online Food Ordering System Activity Diagram – is a designed blueprint that provides a big help in system development. It shows the online food ordering system’s behavior in terms of …
Activity Diagram for Online Examination System
An Online Examination System Activity Diagram is a plan that helps with the development of a system. It shows the system’s behavior in terms of responding to its users or …
Activity Diagram for Online Banking System
The Activity Diagram for Online Banking System is an important part of the banking management system. This designed activity diagram shows the panel and reader how the banking system would …
Activity Diagram for Student Management System
Student Management System Activity Diagram is one of the UML models used to describe the system’s activities. It shows the system’s behavior by presenting the flow of activities from one …
Activity Diagram for ATM Management System
Activity Diagram for ATM Management System – is an illustration of the ATM management software’s behavior towards its users. This depicts the flow of the proposed Capstone Project from the …
Hospital Management System Activity Diagram 2026: Complete UML [Free Download]
UML activity diagram for hospital management system – is one of the UML diagrams built to give the proponents the right ideas on how to develop the said software. When …
Frequently Asked Questions
What is the difference between Activity Diagram and Flowchart?
A flowchart shows control flow with general-purpose symbols (decision diamond, process rectangle, terminator oval). An Activity Diagram is a UML-standardized flowchart with specific UML symbols (filled-circle initial node, rounded-rectangle activity, diamond decision, thick-bar fork/join, circled-dot final node) and the ability to show parallel activities (fork/join) which classic flowcharts cannot. For capstone Chapter 3, use Activity Diagram if your school requires UML; use flowchart if they accept general diagrams.
What is the difference between Activity Diagram and Sequence Diagram?
Activity Diagram focuses on WORKFLOW — what happens, in what order, with what decisions. No specific objects called out. Sequence Diagram focuses on OBJECT INTERACTION — which object calls which method on which other object, and in what order. Activity = "how does the process flow?" Sequence = "which objects do what?" Capstones usually need both.
What are fork and join nodes for?
Fork (thick black horizontal bar) splits one flow into multiple parallel flows that happen simultaneously. Join (also a thick black bar) merges parallel flows back into one. Useful when actions happen in parallel: e.g., after a user pays, your system simultaneously (1) updates the database, (2) sends SMS confirmation, (3) emails the receipt. Fork from "Process Payment," join before "Show Success Screen."
How detailed should my Activity Diagram be?
For BSIT capstone Chapter 3, draw 1-3 Activity Diagrams covering your most important workflows (Login + main user flow + admin flow). Each diagram should have 5-15 activities. More than 20 activities means the workflow is too complex — split into sub-diagrams. Less than 5 means the workflow is too trivial to need a diagram.
What free tool should I use to draw an Activity Diagram?
draw.io / diagrams.net — free, web-based, has UML Activity shapes built in (initial, activity, decision, fork, final). Lucidchart Free — prettier output. Visual Paradigm Community — full UML support. PlantUML — text-based, version-controllable, great for technical docs. Pick draw.io for fastest capstone iteration.
Should I include swimlanes in my Activity Diagram?
Swimlanes (vertical columns labeled with actor/department names) clarify WHO performs each activity. Use them when your workflow crosses multiple roles (Customer / Cashier / Admin / Inventory Clerk all participate). Skip swimlanes for single-actor workflows. Many BSIT capstones include swimlanes for the main workflow but omit them in simpler sub-flows.
How often is this Activity Diagram collection updated?
New Activity Diagrams are added regularly. Existing diagrams are revised when UML 2.5.x notation updates. Last refreshed: May 2026.