I'm not sure that I know of unsuccessful data languages that enable
extensibility, it seems more like one sees successful data languages
that limit extensibility.

Succesful I suppose would mean wide spread in the context of its domain.
Mathml is very widespread in the context of its domain, but otherwise not very.

SVG is really not that widespread in the context of its domain, vector
graphics, but I think most folks who use it are happy with it
nonetheless, and expect it to become very widespread.

Of course widespread, domain, context and the rest can all be open for
argumentation.

Cheers,
Bryan Rasmussen

On 2/7/06, Chiusano Joseph <chiusano_joseph@b...> wrote:
> > -----Original Message-----
> > From: bryan rasmussen [mailto:rasmussen.bryan@g...]
> > Sent: Tuesday, February 07, 2006 5:45 AM
> > To: XML Developers List
> > Subject: [xml-dev] Extensibility of a data language
> >
> > It seems that most successful examples of extension exist at
> > the level of protocol, display languages, and so forth,
> > whereas I can't think of any particularly successful data
> > language where the language had the possibility of extension
> > of the language by users built in.
>
> Not sure what you mean by "successful" (in what sense?) - but what are
> some examples in your opinion of "unsuccessful" data langauges that
> enable extensibility?
>
> Joe
>
> Joseph Chiusano
> Associate
> Booz Allen Hamilton
>
> 700 13th St. NW, Suite 1100
> Washington, DC 20005
> O: 202-508-6514
> C: 202-251-0731
> Visit us online@ http://www.boozallen.com
>
> > It often seems that Data heads feel that the kind of loose
> > extensibility that namespaces can be set to allow will create anarchy.
> > Any arguments against?
> >
> > Cheers,
> > Bryan Rasmussen
> >
> > -----------------------------------------------------------------
> > The xml-dev list is sponsored by XML.org
> > <http://www.xml.org>, an initiative of OASIS
> > <http://www.oasis-open.org>
> >
> > The list archives are at http://lists.xml.org/archives/xml-dev/
> >
> > To subscribe or unsubscribe from this list use the subscription
> > manager: <http://www.oasis-open.org/mlmanage/index.php>
> >
> >
>