The RM-ODP standard still provides the only comprehensive and coherent framework of concepts for the specification of complex large scale IT systems, and has taken on a new significance in the light of the MDA (Model Driven Architecture). Following the success of WODPEC 2004 and WODPEC 2005, WODPEC 2006 aims to continue to provide a discussion forum where researchers, practitioners, system modellers, tool developers and representatives of standardization bodies can meet and exchange experiences, problems and ideas related to the ODP framework for system specification, its practical application and long term evolution, and its use in conjunction with other architectural practices and approaches (e.g., MDA, SOA, CBA, EDA) in the realm of Enterprise Computing.