Bruce D'Arcus wrote:
>
> On Jan 10, 2007, at 9:06 AM, Michael Brauer wrote:
>
> ...
>
>> ... the case I'm talking about is that I want to say something about
>> the text "Some Title", for instance, add the author or an additional
>> description. Maybe I have overseen something, but isn't the subject in
>> this case the text "Some title"? If so, how do you represent this?
>
> Practically speaking, with the example of a title, the subject is either
> the current document, or some other document; it would not be the span
> of text. Moreover, that string is an object.
Is this a restriction of RDF? Is there no way to take a sub tree of an
XML element as a subject?
>>>>
>>>> The attribute that defines the id (in terms of XML) is xml:id. The
>>>> office:belongs-to attributes are references to this id only.
>>>> Although only a single id is used here, we cannot omit the
>>>> <office:meta-subject> element, because we need to define the id that
>>>> has to be unique.
>>> Why this last requirement?
>>
>> XML ids have to be unique.
>
> Yes, but why do need the id?
>
>> That is, there must not be more than one attributes of datatype ID
>> that have the same value. We may of course take some attribute
>> datatype, but then, the fragment identifier do now work anymore,
>> because they operate on attributes of type ID only
>> .
>
> Correct, but at least in RDF, one would never reference a property; not
> part of the model. One references resources (subjects).
But what if the resource (subject) actually is an XML sub tree?
Michael
