Activity Diagrams
PB007 Software Engineering I
Bruno Rossi
14. 10. 2015
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 1 / 8
Activity Diagrams
Activity Diagrams represent the flow of all the steps of an activity. They
consist of different types of nodes that are connected with directed edges.
The Activities most often represent
use cases
operations and methods
algorithms
business processes
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 2 / 8
Basic Elements
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 3 / 8
Activity Diagram - example
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 4 / 8
Swimlanes
Activity partitioning / Swimlanes represent a logical grouping of related
actions (actors, use cases, ...). In our case they will typically represent
different use cases using the relationship include or extend.
include
Basic and embedded use cases have their own swimlane.
extend
If the extension point is in Action1 and Action2 is an extends use
case, then a decision node is inserted after Action1 from which the
flow will go to Action2. After its completion, the flow will go back to
Action2. Each use case may be in its own swimlane.
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 5 / 8
Resources
http://sourcemaking.com/uml/modeling-business-systems/
external-view/activity-diagrams
http://sce.uhcl.edu/helm/rationalunifiedprocess/
process/modguide/md_bactd.htm
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 6 / 8
Tasks
Adjust the result of the previous exercise according to the comments
and feedback from the instructor. Focus on the revision of the text
specification to complete the three use cases from previous sessions;
Select other 1-2 use cases and document them by means of the
activity diagrams, possibly different from those that you used for the
specification. The selection must again be approved by the instructor;
Try to understand in the same way the remaining use cases, to be
able to at least verbally describe their event streams;
Upload the pdf report to the folder (Week 04).
Deadline: Monday 19.10. 23:59 (Groups 2,3)
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 7 / 8
Reporting configuration
Software Engineering I (PB007) Activity Diagrams 14. 10. 2015 8 / 8