APR 10, 2012 5:40am ET

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Big Data and the Coming Conceptual Model Revolution

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Conceptual modeling, or semantic modeling if you like, is a rather nebulous area in data management. There seems to be a lot of agreement that it is needed, some disagreement about what it is, and little understanding of how to do it. Yet I believe we are now at a point where we will be forced to deal with it in a far more serious way than we have in the past.

Definitional Problems

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Comments (9)
Hi, Malcolm. Really interesting post. I have a few questions / comments:

1) While I understand your point that the conceptual model should be separate from the logical & physical models, mustn't you, at some level, reconcile these in order to get any value from the conceptual model?

2) How do you get management to pay for developing something (i.e. a conceptual model) that could be big and expensive yet is so far from the physical level?

3) Regarding your point, "Relationships between non-key attributes in an entity", isn't the relationship inherent in that these two items (total price & foreign key relationship to denomination) appear on the same record?

4) Regarding your point about code tables, aren't the business concepts they represent inherent just in the fact that they exist and are modeled?

5) Finally, can you provide some samples of the types of documentation you've used to support your conceptual models?

Thanks!

-- Ben

Posted by Benjamin T | Wednesday, April 11 2012 at 10:36AM ET
Interesting idea for discussing: Conceptual model is business metadata with taxonomy, categorization, business rules and relationship semantic, isn't it ?

Thanks, Simon

Posted by Semion I | Thursday, April 12 2012 at 5:29AM ET
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