Fundamentals of UML Diagrams

A diagram is the graphical presentation of a set of elements. UML has a lot of different diagrams. Read this section, and make sure you can differentiate between different diagrams.

1. Basic Use Case Notation

1.3. Object Diagram

Object Diagrams show a set of objects and their relationships. They are static snapshots of element instances found in class diagrams. Figure 2.3 shows an example of an object diagram.

Figure 2.3: Example of a UML Object Diagram