What is a Use Case Diagram? A use case diagram is a type of drawing that shows how different people (called “actors”) interact with a system (like a software program or website). It’s a way to show what the system does and who uses it. Key Notions (Symbols) in a Use Case Diagram: Actors: Stick Figure: Represents a person or thing that interacts with the system. For example, a student, teacher, or librarian....
Unified Modelling Language (UML) is a standardised way to visualize the design of a system. UML diagrams can be categorized into two main types: Structural Diagrams and Behavioral Diagrams. Understanding these categories helps in effectively modeling both the static and dynamic aspects of a system. Structural Diagrams Structural diagrams represent the static aspects of a system. They show the system’s classes, objects, and relationships. Here are the key types of structural diagrams:...
In the journey of software development, visual aids like diagrams play a crucial role. They help in understanding, designing, documenting, and communicating different aspects of a system among team members and stakeholders. Let’s dive into some of the most commonly used diagrams in software development. 1. Unified Modeling Language (UML) Diagrams Unified Modeling Language (UML) is a standard language which is not about coding but about visualizing. It helps to model software, systems, and business processes....
Introduction: The SOLID principles are a cornerstone for designing robust, maintainable, and scalable systems. These principles, introduced by Robert C. Martin, provide a foundation for good software design. In this article, we’ll break down each principle with examples, making it easy for beginners to grasp these essential concepts. 1. Single Responsibility Principle (SRP): The Single Responsibility Principle states that a class should have only one reason to change, meaning it should have only one job....