[topicmapmail] webservice notification, ws-topics 1.0

[Murray Altheim]

Robert Barta wrote:
> On Tue, Jun 01, 2004 at 06:11:05PM +0200, Stefan Lischke wrote:
> 
>>btw. is there any research about tmql containment problem (if the result
>>of tmql query A is a superset of the result of another tmql query B,
>>then query A contains query B)
> 
> Stefan,
> 
> As far as TMQL is concerned, our current plan is to support output in
> the form of
> 
>    - lists of tuples (like in good'n'old SQL),
>    - XML documents (actually infoset structures) like good'n'new XQuery, and
>    - TM instances like ??? (hey, something new :-)
> 
> Containment for lists of tuples can be defined rather natural.  I am
> not sure about a containment in XML (subtrees?), there could be many
> ways to define this.
> 
> For TM output, we would have to define finally what 'fragments' or
> 'submaps' are. Not a big deal, I guess once we have a formal model.
> 
> BTW: Anyone working (have worked) on this, please feel free to send me
> a link; I think it is overdue to collect the approaches on a dedicated
> page. I promise to republish this as TM!

Robert,

Last week I had a visit here from Susan Elliott Sim, one of the
researchers who's worked on the Graph eXchange Language [GXL].
I'd previously mentioned modularizing the DTD and fixing some of
the outstanding bugs. We're to continue discussions and perhaps
sometime over the summer release a new version that would support
GXL being a potential serialization syntax for various graph-
based projects that involve GXL documents referring to other
GXL documents or URIs (currently it uses IDREFs for links). It
would certainly be possible at that time to support a seriali-
zation syntax for Topic Maps (if that proved any benefit), but
there might also be avenues for using GXL as a syntax for TM-
related projects rather than writing a syntax from scratch. I
believe that a newer version of GXL will support the TM concept
of PSIs. There are of course places where GXL would not be
appropriate, but I thought I'd mention this as a possible syntax.

Murray

......................................................................
Murray Altheim                    http://kmi.open.ac.uk/people/murray/
Knowledge Media Institute
The Open University, Milton Keynes, Bucks, MK7 6AA, UK               .

   "The new ship is also controlled by state-of-the-art computers
    using a Windows NT operating system. [...] The Swedish Navy
    deny it could be sabotaged by hackers and say that even if it
    did they could fall back to traditional steering and navigation."
    http://news.bbc.co.uk/1/hi/technology/3724219.stm

    I'd be more worried about the OS crashing than being hacked.