[Rd] Re: [Omega-devel] StatDataML Description element

[Torsten Hothorn]

> 
> 1. easy links to an originator would be good e.g. is there any way to use
> hypertext in any of the arguments for email or web site referrals?
> 

as long as all elements include strings, "source" would be the right place
to save a URL 

> 2. what limits (any?) are there typically on the length of the strings in
> the arguments of DESCRIPTION?
> 

interesting question, I think there is no limit.

> 3. In S or R or Omega, a statistical dataset's description is always
> available by command or menu item (I'm guessing).  Are the arguments
> typically available now for any kind of search or filtering or action by my
> statistical application (e.g. can I ask the statistical application to only
> allow me to work on datasets from a certain source? I guess this is possible
> and would be addressed by the application developers, not the developers of
> the XML standard but maybe there is something required of the XML standard
> to make it possible to hook to applications?)
> 

in our alpha implementation, readSDML returns the read object with an
additional "SDMLdescription" attribute. One can check, if e.g. the source
is valid in a special application.

> 4. is the list of arguments fixed at five? Or could one allow for multiple
> comment1, comment2, ...
> 

<!ELEMENT description (title?, source?, date?, version?, comment*)>

allows comments until the end of time (will be added in StatDataML.dtd,
thanks for the hint). 

> [If one can search or otherwise operate on the string in the "comment" field
> then I guess you don't need to extend the list of arguments.  That leads to
> another question:  how extensible or upgradeable is StatDataML envisioned to
> be?  I can imagine a "Data Quality Stamp or Certification" being relevant
> within certain communities and it would be nice to have that in the
> meta-data description, perhaps as a separate argument.]
> 

something like a RSA-key included in the description? will think about
this! 

Torsten

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