Definitive, Comprehensive SCEA Exam Prep-Straight from Sun,s Exam Developers! This book delivers complete, focused review for Sun,s new Sun Certified Enterprise Architect (SCEA) for Java EE certification exam-straight from two of the exam,s creators! SCEA lead developer/assessor Mark Cade and SCEA lead developer/assessor Humphrey Sheil offer powerful insights, real-world architectural case studies, and challenging sample questions that systematically prepare you for the actual exam. For every question, the authors show why the right answers are right-and why the other answers are wrong.Cade and Sheil cover every SCEA exam topic, skill, and technique, including: *Understanding system architecture and its goals*Decomposing larger systems into components organized by tiers or layers*Addressing requirements for scalability, maintainability, reliability, availability, extensibility, performance, and security*Building effective web (presentation) tiers, and analyzing tradeoffs associated with using web frameworks*Leveraging EJB 3,s enhancements for business tier development*Covering new enhancements in the JEE 5 platform*Choosing and architecting the best integration and messaging components for your system*Using the Java security model to enforce confidentiality, integrity, authorization, authentication, and non-repudiation*Using the most powerful and useful Java EE architecture patterns*Documenting Java EE architectures through visual models and narratives The authors also present detailed guidance for handling every element of the SCEA exam-including your development and defense of a complete real-world architectural solution.