n Reference Cards
Sun Core J2EE Patterns: Patterns index page
JMatter is a software framework for constructing workgroup business applications based on the Naked Objects Architectural Pattern.
This paper examines this most frequently deployed of software architectures: the BIG BALL OF MUD. A BIG BALL OF MUD is a casually, even haphazardly, structured system. Its organization, if one can call it that, is dictated more by expediency than design.