ANSWER

UML 2.0 contains 13 different diagrams (up from 9 in the previous version).  Each can be beneficial to the business analyst under specific circumstances.  These 13 diagrams are grouped into 3 different categories.

What are the 3 categories of UML diagrams?

• Structure Diagrams
• Behavior Diagrams
  
• Interaction Diagrams
  

The following 6 diagrams fall within the category of Structure Diagrams.

• Class Diagram
• Object Diagram
  
• Component Diagram
  
• Composite Structure Diagram
  
• Package Diagram
  
• Deployment Diagram
  

The following 3 diagrams fall within the category of Behavior Diagrams.

• Use Case Diagram
• Activity Diagram
  
• State Machine Diagram
  

The following 4 diagrams fall within the category of Interaction Diagrams.

• Sequence Diagram
• Communication Diagram
  
• Timing Diagram
  
• Interaction Overview Diagram