[glue-wg] Placeholder for IDs?

[Paul Millar]

On Monday 26 October 2009 13:12:55 stephen.burke at stfc.ac.uk wrote:
> > (other than an implication in the placeholder
> > section that strings may be UTF-8).
> 
> While I'm at it, another thing that came up recently was that we don't
> seem to have a placeholder for unique IDs, e.g. a mandatory foreign key.
> Do you have any suggestions? (So far I went for "$UNDEFINED$" in the
> absence of inspiration ...)

Well, if we're talking GLUE 2.0, then IDs are URIs, so section A.11 (page 64) 
should apply.

If we're talking Glue 1.3, then $UNDEFINED$ is fine.

Cheers,

Paul.