What are the two main types of UML diagrams?

Two main types of UML diagrams are structural diagrams and behavioral diagrams.

• Structural diagrams describe the static structure of the system: classes, objects, components, their relationships, and dependencies. Examples include class diagrams, component diagrams, deployment diagrams.

• Behavioral diagrams show the dynamic behavior of the system, interactions between objects, and processes. Examples include use case diagrams, sequence diagrams, state diagrams.