This book constitutes the thoroughly refereed postproceedings of the International Workshop on Trends in Enterprise Application Architecture, TEAA 2005, held in Trondheim, Norway in August 2005 as satellite event of the 31st International Conference on Very Large Data Bases, VLDB 2005.

The 10 revised full papers presented together with the abstract of the keynote lecture were carefully reviewed and selected from numerous submissions for inclusion in the book. Their common purpose is to identify problems or issues in enterprise application architecture and propose and evaluate a solution. Topics of interest are model driven architecture, enterprise development environments, service oriented architecture, data integration, sizing and cost estimation, performance benchmarking, mobile workforce access, multi-channel architecture, autonomous computing, enterprise grid computing, load balancing, and enterprise component platforms.