I don't see Mike Hernandez as much as I used to. Both our professional lives have changed a great deal since I first wrote the foreword to his original edition. If nothing else, we travel less, and our paths cross less often than they did. If you'll indulge me, I might try to add that the entire world has changed since that first edition. On the most mundane level, my whole development life has changed, since I've bought into this Microsoft .NET thing whole-heartedly and full-time. One thing that hasn't changed, however, is the constant need for data, and well-designed data. Slapping together sophisticated applications with poorly designed data will hurt you just as much now as when Mike wrote his first edition—perhaps even more. ...

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