This handbook is a concise guide to architecting, designing and building J2EE applications. This handbook will guide the technical architect through the entire J2EE project including identifying business requirements, performing use-case analysis, object and data modeling, and guiding a development team during construction. Whether you are about to architect your first J2EE application or are looking for ways to keep your projects on-time and on-budget, you will refer to this handbook again and again.You will discover how to: - Design J2EE applications so that they are robust, extensible, and easy to maintain. - Apply commonly used design patterns effectively - Identify and address application architectural issues before they hinder the development team - Document and communicate the application design so that the development team's work is targeted - Avoid common mistakes that derail project budgets and timelines. - Guide the development team through the design and construction process. - Setup effective procedures and guidelines that increase stability and decrease bug reports - Effectively estimate needed resources and timelines