What are the standard UML diagrams?

Standard UML (Unified Modeling Language) diagrams are essential tools for visualizing and documenting software systems. These diagrams include:

1. Use Case Diagrams – Show system interactions and user requirements.

2. Class Diagrams – Detail the system's classes, attributes, and relationships.

3. Sequence Diagrams – Illustrate object interactions and the order of messages.

4. Activity Diagrams – Represent the flow of activities and decision points.