1. Ambler, S.W.: Agile Modeling: Effective Practices for eXtreme Programming and the Unified Process. John Wiley & Sons, Chichester (2002)
2. Carroll, J.M. (ed.): Designing Interaction: Psychology at the Human-Computer Interface. Cambridge University Press, Cambridge (1991)
3. Ceri, S., Fraternali, P., Bongio, A., Brambilla, M., Comai, S., Matera, M.: Designing Data-Intensive Web Applications. Morgan Kaufmann, San Francisco (2003)
4. Conallen, J.: Building Web Applications with UML. Addison-Wesley, Boston (2003)
5. Courage, C., Baxter, K.: Understanding your users: a practical guide to user requriements - methods, tools & techniques. Morgan Kaufman, Boston (2005)