Systems Analysis & Design

UML

Unified Modeling Language

It is a visual language for designing software systems.

Common UML diagrams:

• Class diagram → shows objects and relationships
• Sequence diagram → shows interaction over time
• Use case diagram → shows how users interact with the system
• Activity diagram → shows workflows

Agile Software Development

Agile is a development philosophy and methodology.

It focuses on:

• Delivering software in small increments
• Continuous feedback
• Adapting to change
• Close collaboration with customers

Common Agile frameworks

• Scrum Alliance related Scrum
• Kanban
• Extreme Programming (XP)