In This Lecture You Will Learn:

  • The purpose of activity diagrams
  • The notation of activity diagrams
  • How to draw activity diagrams


  • The notation and semantics of activity diagrams have changed significantly since UML was first released. The original UML books are now out of date on the subject.
  • Bennett, Skelton and Lunn (2005)
  • Object-Oriented Technology – From Diagram to Code with Visual Paradigm for UML, Curtis H.K. Tsang, Clarence S.W. Lau and Y.K. Leung, McGraw-Hill Education (Asia), 2005