rdf, xmp

[Imbaud Pierre]

Andy Dingley a écrit :
> Imbaud Pierre wrote:
> 
>>I have to add access to some XMP data to an existing python
>>application.
>>XMP is built on RDF, RDF is built on XML.
> 
> 
> RDF is _NOT_  built on top of XML. Thinking that it is causes a lot of
> trouble in the architecture of big RDF projects. RDF is a data model,
> not a serialisation. The data model is also a graph (more than XML can
> cope with) and can span multiple documents. It's only RDF/XML that's
> the serialisation of RDF into XML and good architectures start from
> thinking about the RDF data model, not this RDF/XML serialisation.
Granted, I oversimplified, my statement was misleading. I tried to
help unknowledgeable reader understand what it was about.
> 
> As to RDF handling, then the usual toolset is Jena (in Java) and
> Redland has a Python binding although Redland is fairly aged now.
> 
> I'm unfamiliar with XMP and won't have a chance to look at it until
> Monday. However if XMP is strongly "XML like" despite claiming to be
> RDF, then you might find that handling a pure XMP problem is quite
> easily done with XML tools.
This was my wild guess: the data model I deal with (XMP data, I mean) is 
hardly more than a bunch of key-value pairs - with control for 
vocabulary, and some typing.
> 
> Famously RDF/XML is unprocessable with XSLT if it's sophisticated, but
> quite easy if it's restricted to only a simple XML-like RDF model. XMP
> could well be similar.
Still unclear.
> 
Thanks for your help!