Douglas Barry specializes in enterprise architecture with an emphasis in service-oriented architecture, database systems, and object technology, His practice is aimed at accelerating your understanding and use of software technology. He is an author, columnist, guest lecturer, international speaker, and mentor. Mr. Barry has consulted to over 80 companies operating in the areas of finance, stock trading, computer-aided design, telecommunications, electronic catalogs, software development, manufacturing, and military applications. He has written or edited six books and was the series editor for The Savvy Manager's Guides, published by Morgan Kaufmann. He has written over 40 magazine columns or articles and published over 400 pages of online articles at www.service-architecture.com/articles/.