Enterprise, Business-Process and Information Systems Modeling 12th International Conference, BPMDS 2011, and 16th International Conference, EMMSAD 2011, held at CAiSE 2011, London, UK, June 20-21, 2011. Proceedings - Halpin, Terry; Nurcan, Selmin; Krogstie, John; Soffer, Pnina; Proper, Erik; Schmidt, Rainer; Bider, Ilia (Springer Berlin Heidelberg : Imprint: Springer, 2011)