Availability, Reliability and Security for Business, Enterprise and Health Information Systems IFIP WG 8.4/8.9 International Cross Domain Conference and Workshop, ARES 2011, Vienna, Austria, August 22-26, 2011. Proceedings - Tjoa, A Min; Quirchmayr, Gerald; You, Ilsun; Xu, Lida (Springer Berlin Heidelberg, 2011)