OCT 12, 2012 11:56am ET

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Batman versus the Evil Definitions

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Batman once said, “It’s not who I am underneath, but what I do that defines me.” Can we apply this same reasoning when defining key terms of our data models?

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Comments (5)
Perhaps because I'm a pragmatist rather than a purist I go for the "Part of the Solution" option. For many (most?) entities one really know very little about an entity just from the key. All the interesting stuff is a product of foreign keys and actions recorded.

Sub-types and super-types are particularly defined by what the entity does. Think of the different attributes arising from the different actions undertaken by a patient and a provider. Or, think of the similarities arising from brokers and sales staff performing many of the same actions.

Posted by David B | Monday, October 15 2012 at 10:04PM ET
I tend to look at both, especially when discussing Master Data. There are Nouns and Adjectives in our data. Nouns I typically take a more direct approach in defining the Customer, where the Adjectives I bind more to a function. An example of these would be where discussing a person (Noun), v. a security permission field (role).
Posted by Ralph B | Tuesday, October 16 2012 at 12:09PM ET
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