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"The Data Model Resource Book, Revised Edition, Volumes 1 & 2"
To help us provide a strong data model foundation for the project we are using entity designs from these books and from various standards bodies. These books have been an excellent reference and useful design guide for handling business related data. Open For Business uses a variation on the models in the book, but most concepts from the book are actively used, enough so that it is very worth it to buy these books.
Accounting and Supply Chain
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This is a great book about effective use of CSS for web sites. These patterns help achieve goals such as easily changing L&F with only CSS changes, and minimizing the explicit styling information in HTML, ie using more implicit structure information and special purpose classes or ids. The companion web site has some great examples: http://www.csszengarden.com/
Java & J2EE
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