This was an excellently written article. It makes a point to both technical and non-technical people. I have read the replies and have to say, as with cats there are many ways to skin them. I would not use the design as presented, yet I understand the presenter was trying to get a specific point across about temporal database design and not how to effective design database entity keying relationhsips.

We have “Lunch-N-Learns” at my organization and I am going to use this article as the basis of one of those sessions… with required attendance (we provide the lunch when attendance is required). Everyone in a data-centric organization should be aware of these principles, whether they are techies or not.

Thank you Sam and I look forward to your next article.