This article introduces you to the basics of design patterns and explains how IBM Rational Software Architect fosters design pattern-based development. It also provides a few examples of design patterns and shows you how quickly you can build class diagrams and generate code based on these patterns. Follow-up articles will elaborate in more detail on what is covered in this introductory article.

http://www-128.ibm.com/developerworks/rational/library/05/524_rsa/