Advances in Conceptual Modeling - Theory and Practice ER 2006 Workshops BP-UML, CoMoGIS, COSS, ECDM, OIS, QoIS, SemWAT, Tucson, AZ, USA, November 6-9, 2006. Proceedings - Roddick, John F.; Benjamins, V. Richard; Si-said Cherfi, Samira; Chiang, Roger; Claramunt, Christophe; Elmasri, Ramez A.; Grandi, Fabio; Han, Hyoil; Hepp, Martin; Lytras, Miltiadis D.; Mišić, Vojislav B.; Poels, Geert; et al. (Springer Berlin Heidelberg, 2006)