Title: The introduction to Xplain
Product review: I've used semantic data modeling as independent consultant and employee over the years, and I love it. The Xplain data definition and manipulation language is just great to create consistent data models. This book is an excellent introduction to that language. In my experience Xplain diagrams are far easier to understand that ER diagrams. Handy if you come in new to a project and need to understand the database: just draw an Xplain diagram. With an Xplain diagram most of the time I can also immediately offer suggestions for improvement.Another advantage is that semantic modeling recognizes only inheritance and aggregation, so it fits well in an OO approach to software development.So if you do a lot of data modeling and data base design I suggest you get hold of a copy. Your data models will improve, guaranteed!
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