* TheComputerDoesntCare
 * LayeredArchitecture
 * [[http://groups.yahoo.com/group/refactoring/message/5295|In defense of layered architectures]] by Harald Mueller on the Refactoring yahoogroup.
 * [[http://groups.yahoo.com/group/refactoring/message/5287|The problem with globals]] by John Carter on the Refactoring yahoogroup.
 * [[http://martinfowler.com/bliki/DatabaseStyles.html|Database Styles]] by Martin Fowler, discussing the difference between an Application Database and an Integration Database.
 * ''The Field of Software Architecture'' [[http://wwwbroy.informatik.tu-muenchen.de/publ/papers/TUM-I9641.pdf|PDF]] by Christoph Hofmann, Eckart Horn, Wolfgang Keller, Klaus Renzel, Monika Schmidt