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   Re: [xml-dev] XML/RDF

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Micah Dubinko wrote:
> Hi Paul, Mike,
>>Two databases may 
>>use different identifiers for what is in fact the same concept, such as 
>>zip code. A program that wants to compare or combine information across 
>>the two databases has to know that these two terms are being used to 
>>mean the same thing.
> Isn't that the whole crux of the problem? If the problem is that two
> databases (or web pages) use a different name for "zip code", the solution
> is to add a third (Q)name, that both must agree upon?

That's one option, but it is very heavy-handed and not practical in all 
cases. What do you do about pre-existing data sources that you don't 
control? What if you can't convince the owners of these data sources to 
work together?

I prefer the other option. I can, either locally or globally, make a 
statement that says that these two things are really the same and it is 
_as if_ they had standardized but without the effort. Then I can save my 
energy to standardize the really hard cases like across disparate 
addressing schemes or protocols, or when the mapping is more complex 
than a simple renaming.

  Paul Prescod


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