Chapter 1. Introduction

Topics in This Chapter

• What Is J2EE?

• What Are Patterns?

• J2EE Pattern Catalog

• Patterns, Frameworks, and Reuse

The last five years have been extraordinary with respect to the changing landscape of enterprise software development. At the center of this change is the Java 2 Platform, Enterprise Edition (J2EE), which provides a unified platform for developing distributed, server-centric applications. The widespread adoption of the strategic, enabling technologies of J2EE have provided the development community with open standards on which to build service-based architectures for the enterprise.