[Nml-wg] NML namespace

[Roman Łapacz]

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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