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   Re: [xml-dev] What A Document Means

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> In http://www.w3.org/2001/tag/doc/docmeaning.html
> we are given a one page attempt to define what "a document means".
> First what a document is "on the web":
> "A document on the Web is a stream of bits identified with a specific MIME
type. The MIME type indicates to the processor how it may interpret the
stream of bits to decompose it into a sequence of characters, for example,
or a specific bitmap image."

Back to the basics, huh? Other than as a philosophical exercise, what is
the value of defining "document" in the the context of XML?

The definition asserts that documents per se must have a MIME type, and
without a human or computer definition of a MIME it is meanless.
So if I create a text files without an associated MIME type
(say text/html)with this content:

<NotADocument> This is not a document</NotADocument>

Does that mean it is not a document, since there is no MIME type?

> So far so good.  That is a systemic definition.  There is a list with
> solutions for determining in an "unambiguous way" what a document "means".
> One possible answer is
> "The document forms a complete information set. Although expensive in the
general case, it's not entirely unreasonable to imagine applications that
examine an entire information set."
> Can someone explain this?  What is an "information set" and how does
> one determine "completeness" for two ends of a single transaction or

In a logical system, you build other propositions from a set of axioms that
are given as it.
In this case information set is probably another (unfortunately, undefined)
which probably means a set of data, which can be numbers, alphabets, words,


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