Activity Diagram for Attendance Management System
Activity Diagram for Attendance Management System – The system’s activity diagram is a UML functional model that shows how its activities flow. This example of an diagram uses symbols to …
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 Payroll Management System
A Payroll Management System Activity Diagram is a picture that shows how the system works. It shows how the Payroll Management System interacts with the people who use it. The …
Activity Diagram for Bank Management System
An Activity Diagram for Bank Management System is a picture that has been made to show how a system works. It shows how the Bank Management system interacts with its …
Activity Diagram for Restaurant Management System
UML activity diagram for restaurant management system is a planned illustration of how the project will work. It shows how the restaurant management system interacts with its clients or users. …
Activity Diagram for Blood Bank Management System
A well-designed blueprint that greatly aids in system development is the Blood Bank Management System Activity Diagram. It displays how the blood bank management system behaves while interacting with its …
Activity Diagram for Employee Management System
Employee Management System Activity Diagram – A system’s development is aided by an activity diagram for personnel management. It displays how the employee management system acts when interacting with its …
Activity Diagram for Hostel Management System
The Activity Diagram for Hostel Management System provides a designed blueprint that provides a big help in system development. It shows the hostel management system’s behavior in terms of responding …
Activity Diagram for Railway Reservation System
The activity diagram for online railway reservation system is a UML activity diagram built to give the developer the right ideas on how to develop the said software with an …
Activity Diagram for Airline Reservation System
The Airline Reservation System Activity Diagram is one of the UML activity diagrams that is used to illustrate the behavior of the system towards its users. This activity diagram was …
Activity Diagram for College Management System
Activity Diagram for College Management System: This interprets the flow of activities that run while using the system. The activity diagram is designed to give the proponents and their users …
Activity Diagram for Hotel Management System
Hotel Management System Project Activity Diagram – This is an illustration of the hotel management software’s commitment to its users. This designed activity diagram is used to make an explanation …
Online Shopping System Activity Diagram 2026: Complete UML [Free Download]
The activity diagram for online shopping management system is a state chart variation that is a graphical representation of an executed collection of procedural purchasing actions. This section goes into …
Library Management System Activity Diagram 2026: Complete UML [Free Download]
The activity diagram example for library management system is a UML behavioral model. It shows the system’s behavior by presenting the flow of activities from one to another. The possible …
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.