On Wed, Feb 24, 2010 at 10:19 AM, Ishan Jayawardena <[email protected]> wrote:
> I don't get the difference between "a schema" and "a schema documet", when 
> you say,

>>  Given that there is no defined way to resolve an URI to a schema (note:
>> not a schema document), it'll often be difficult (and not very useful) to
>> work with absolute SCDs.
>
>  what is actually the difference between them?

Sandy, is right. To me, "schema" is a generic term, representing a
logical assembly of schema components (using notions like elements,
attributes, cardinality and so on). We cannot identify a "schema" in a
sense which Sandy explained, with a URI (in a standard way, as Sandy
explained).

Whereas, "schema document" is some physical representation of the
schema (say a file on local file system, or a web server), which is
normally identifiable with some URI.


-- 
Regards,
Mukul Gandhi

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