W dniu 2012-07-18 14:55, Freek Dijkstra pisze:
Hi,
If someone knows an expert in XML (and RDF) namespaces at your local institute, I appreciate it if you can get into touch with me.
FYI --
I like some confirmation if my ideas how a slash (/) or hash (#) should or should not be appended to a namespace. See https://forge.ogf.org/sf/go/artf6570 for what I understand so far about http://www.w3.org/TR/xml-names/ (XML) and http://www.w3.org/TR/swbp-vocab-pub/ (RDF).
My understanding now is that if we want to define the namespace: http://schemas.ogf.org/nml/2012/10/nml With elements such as http://schemas.ogf.org/nml/2012/10/nml#Node
I've checked quickly the W3C recommendation and in my opinion both forms (with and without slash) are acceptable (I can't find info indicating that slash should not be used; also I've looked at few good examples in the Internet having both forms). It's up to us do we use it or not. GFD.84 promotes this: http://schemas.ogf.org/nml/2012/10/nml so I would stick with it. Also I would use slash to represent elements (if needed). We do it this way in perfSONAR. http://schemas.ogf.org/nml/2012/10/nml/Node Roman
Then in RDF, we need to write: @prefix nml:<http://schemas.ogf.org/nml/2012/10/nml#> urn:ogf:network:example.org:2012:mynode a nml:Node
And in XML, we need to write: <root xmlns:nml="http://schemas.ogf.org/nml/2012/10/nml"> <nml:Node id="urn:ogf:network:example.org:2012:mynode" />
Thus WITH slash in the RDF namespace shortcut, and WITHOUT slash in the XML namespace shortcut.
I'm somewhat confident of the RDF example, but not sure about the XML example -- XML only seems to define the concept of "'Node' at the 'http://schemas.ogf.org/nml/2012/10/nml' namespace" but never the concept of "'http://schemas.ogf.org/nml/2012/10/nml#Node'" and how to add a slash to join the two together.
Feedback is HIGHLY appreciated.
Thanks, Freek
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