Design pattern (computer science)

In software engineering, a design pattern is a general solution to a common problem in software design. A design pattern isn't a finished design that can be transformed directly into code; it is a description or template for how to solve a problem that can be used in many different situations. Object-oriented design patterns typically show relationships and interactions between classes or objects, without specifying the final application classes or objects that are involved. Algorithms are not thought of as design patterns, since they solve computational problems rather than design problems.

External links

• Java J2EE pattern catalog
• The list of design patterns is entirely based on a wiki page http://c2.com/cgi/wiki?CategoryPattern.
• Many design patterns are described in mgrand's book
• Design Patterns in Java
• Patterns Catalog
• Design Pattern Toolkit
• XML structural design patterns.
• Perl Design Patterns
• The PatternShare community - community site for sharing patterns.
• TechBookReport - reviews of books on design patterns and software methodologies