References

[1] Scott W. Ambler. UML Use Case Diagramming Guidelines. 2002. http://www.modelingstyle.info/useCaseDiagram.html#UseCases
[2] Georgios Chalkiadakis. UML: A Survey Focused On Use Case Modeling. http://www.cs.toronto.edu/~gehalk/unpublished.html
[3] Martin Glinz. Problems and Deficiencies of UML as a Requirements Specification Language. In Proceedings of the 10th International Workshop on Software Specification and Design (IWSSD-10), pages 11-22, San Diego, November 2000.
[4] Slobodan Kalajdziski. UML Tutorial in 7 days.
http://odl-skopje.etf.ukim.edu.mk/uml-help/
[5] David Leberknight, Ron LeMaster. Object-Oriented Programming and Design: Part IX - UML Use Case Diagrams. http://www.softwarefederation.com/cs4448/spring2002/courseNotes/ 09_UMLUseCaseDiagrams.pdf
[6] Politecnico D. Torino. Use Case Diagram: Requirements Analysis and Specification. http://web02.polito.it/centri/cetem/corsi/db/01BHKH/pdf/07uml.pdf
[7] Alain Wegmann, Guy Genilloud. The Role of Roles in Use Case Diagrams. In Proceedings for Conference UML 2000, pages 210-224, York, UK, October 2000.