Top-down or bottom-up?

Paul Prescod paul at
Wed Jun 16 12:57:39 BST 1999

David Megginson wrote:
> That's not what I mean -- creating a data model is tractable, but a
> data model is of questionable value if it's not based on a fairly
> accurate business model, use cases, etc.  

I do not see why a data model has any higher requirement for business
models, use cases and so forth than a language like HTML, XLink or XML
namespaces. In fact, I would argue that those languages always have an
implicit data model reflecting implicit use cases and business models. We
can make the data model explicit without making the use models explicit.
Isn't that essentially what the information set is doing?

 Paul Prescod  - ISOGEN Consulting Engineer speaking for only himself
 htX-Mozilla-Status: 0009/~papresco

[Woody Allen on Hollywood in "Annie Hall"]
Annie: "It's so clean down here."
Woody: "That's because they don't throw their garbage away. They make 
        it into television shows."

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