This document discusses the necessary knowledge and tools for SOA Suite 11g, including MDS, avoiding invalid composites, deployment, testing with SOA TestSuite, AIA CAVS, and continuous integration with Hudson. MDS provides centralized storage for artifacts accessed at design and run-time. Invalid composites can occur when composite references are unavailable; the solution is to import references into MDS. Deployment options include JDeveloper scripts, AIA, and custom WLST/resource adapters. Testing tools include SOA TestSuite, AIA CAVS for validation across composites, and Hudson for continuous integration.