Visio UML Composition and Aggregation

Searching for an UML Aggregation Shape, because there was only a Composition Shape available in Visio, I found a nice tutorial from Brigham Young University Computer Science Department. It explains with illustrations that you have to take the Composition Shape and then change its options.

Aggregation can be shown by:

  1. creating a composite shape
  2. double click on it
  3. click on properties
  4. select “shared” from the Aggregation menu