Writing for programmers, designers, and architects of Enterprise applications, Fowler (chief scientist for ThoughtWorks, an Enterprise application development and integration company) and colleagues present a text comprised of a narrative treatment of various topics in the architecture of Enterprise applications and a larger reference section describing domain logic patterns that can be used as solutions to the problems posed in the earlier part of the text. In the narrative section of the text, they cover layering, organizing domain logic, mapping to relational databases, Web presentation, concurrency, session state, and distributions strategies. Annotation c. Book News, Inc., Portland, OR (booknews.com)