Use Cases and User Stories are two widely used techniques for capturing software requirements, each serving a different purpose. This article explains their key differences, strengths, and ideal use cases through real-world examples, helping project managers, analysts, and agile teams choose the right approach—or combine both—for building user-focused software systems.
Use Case Diagrams in UML provide a clear, user-centric view of system functionality by illustrating how external actors interact with a system to achieve specific goals. This article explains the core elements of use case diagrams—actors, use cases, and relationships—using real-world examples and practical scenarios to help beginners and professionals understand their role in modern software development and requirements analysis.
Unified Modeling Language (UML) is a standardized visual language used to model, design, and document software systems. By representing both the static structure and dynamic behavior of a system, UML helps teams clearly understand what a system is made of and how it behaves over time. This post provides a concise overview of UML, its purpose, and a complete list of UML diagram types—setting the foundation for deeper dives into each diagram in upcoming articles.