[Data-modeling] Library of Congress and Dewey Classifications

[Tim Kientzle]

> The codes, regardless of how we do this, should definitely be
> machine-readable strings, ... I wonder which would be more useful --  
> a simple string or a
> topic?

Using a topic for at least the top-level portion (e.g., the part to  
the left of the decimal in the Dewey Decimal system) would create a  
nice browsing option:  "All books in Dewey Decimal 303"

Of course, you could also do this with a wildcard search on a string  
value.

Tim Kientzle