database management systems

Prospective buyers should be aware ERM is a mistake. It is a vastly oversimplification of actually modelling, being incapable of representing many fundamental features of any relational model and even being misleading.

ER diagrams OTOH are nice for drafting and presentation purposes. Just don't confuse them with a real model.

I work in the Information Technology Section for the Department of Natural Resources. This review is for the book Case* Method: Tasks and Deliverables by Richard Barker ISBN 0-201-41697-2.

I have been using Richards book on Case Methodology for years as a guideline for project management and planning. There has been many methodologies introduce to the department through out the years, but we keep coming back to the concepts and tactics outlined in this book to help keep things organized and on track. I have found his concepts have proven themselves through time as a good template to follow. I am looking forward to reviewing your books Case*Method: Entity Relationship Modelling as well as Storage Area Networking Essentials.
Keep up the good work that has a timeless application and relevance.

I have to concur with the other five star reviews on Barker's book. I spent hours in a Borders evaluating which book to buy to learn Entity-Relationships. This was the book I picked and I never regretted it. All other data modeling books make far more sense after reading Barker's first two chapters.