A Controller Class Diagram is a specialized diagram used in MVC (Model–View–Controller) architecture to represent the controller layer of a system. Unlike standard UML class diagrams that cover the entire
Why System Design Must Be Iterative System requirements rarely remain static. New features are requested, user feedback highlights gaps, and technical constraints reshape initial ideas. In such a dynamic environment,
Introduction to Sequence Diagrams A sequence diagram is a type of UML diagram that shows how objects interact with each other over time. It focuses on the order of messages
Why Compare UML Diagrams? UML offers multiple diagram types, each highlighting different aspects of a system. While they may overlap, they serve unique purposes. Knowing when to use sequence diagrams
Sequence diagrams play a vital role in translating user interactions into structured system architecture. By showing the flow of messages between actors and system components, they provide the missing link
A clear use case description is the foundation of effective system design. Before drawing sequence diagrams, documenting what a system should do in simple language ensures accuracy, consistency, and a
The Accept or Cancel Assignment use case is a central function in ride-hailing platforms. It shows how a driver receives a ride request, reviews passenger details, and decides whether to
The Place Order use case is a key feature in food delivery and online ordering platforms. It demonstrates how a customer selects a restaurant, browses the menu, adds items to
The Enroll in Course use case is a central feature in many e-learning platforms. It shows how a student browses the course catalog, reviews details, checks prerequisites, and confirms enrollment.
The Update Task Status use case is commonly seen in project management and collaboration tools. It represents how a team member selects a task, updates its progress, and logs the
