Hi, I uploaded a draft PDF document together with a set of UML class diagrams to Tuscany wiki @ http://wiki.apache.org/ws/Tuscany/TuscanyJava/SandboxCore.
Please note these documents are work in progress and not guaranteed to be accurate and complete. They are produced based on my understanding of the new core code developed by Jim and Jeremy in the sandbox. It's subject to review and revision. I hope it will be hopeful for you to understand the code. Thanks, Raymond
