This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I want to get involved in SOA, and I was suggested to start from building Canonical Data Model.
Where should I start? Is this just a bunch of XSDs with all data types (that will be used in future WSDLs) defined?