Practical Data Administration

Published in TDAN.com April 2001 In the magical land of Logical Nirvana there lives Good Queen Normalization III. In this…

Perspective and Abstraction

Published in TDAN.com January 2001 Introduction In technical literature and in the as various discussion groups, there seems to be…

Measuring the Quality of Models

Published in TDAN.com October 2000 INTRODUCTION Many professions have plenty of yardsticks for measuring their version of ‘quality’. Sadly, data…