Core J2EE™ Patterns: Best Practices and Design Strategies

Patterns, Frameworks, and Reuse

We have been chasing the illustrious software reuse goal for years now and have only had moderate success. In fact, most of the commercial reuse success has been in the user interface area, not in business components, which is our focus. As business system architects, we strive to promote reuse, but have really been concentrating on reuse at the design and architecture levels. The pattern catalog has proven a powerful way to promote this level of reuse.

There are numerous relationships between each of the patterns in the catalog, and these relationships are sometimes referred to as being part of a pattern language. We provide a diagram of these relationships in Chapter 6, Figure 6.2. Another way to describe these ...