Background material (not mandatory)
Rumbaugh, Jacobson, Booch: UML Reference Manual, Second Edition, 2004. Addison-Wesley. ISBN:?0321245628. Link to Addison-Wesley on this book.
OMG: UML Profile for Modeling QoS and Fault Tolerance, 2005. OMG. http://www.omg.org/docs/ptc/05-05-02.pdf.
Haugen, M?ller-Pedersen, Weigert: Structural Modeling with UML 2.0, 2003. Kluwer. ISBN:?1-4020-7501-4. We have picked out one chapter, but also other chapters are interesting. chapter in pdf.
Haugen, Husa, Runde, St?len: STAIRS towards formal design with sequence diagrams, 2005. SoSyM, Springer Online. STAIRS article.