Hi Karen:

The SICI is a registered 'info' namespace, see

(Although looking at the record we might need to add something about
%-escaping now that the URI syntax document is finally approved, see

The advantage of using SICI in 'info' form is that it becomes a URI and can
be used in various contexts where a URI is expected. But you are right that
a SICI does not guarantee a unique identifier for a document - which is why
many publishers chose not to use the SICI as the DOI suffix string. Having
said that it does provide a very compact metadata packaging mechanism.



> -----Original Message-----
> From: Metadata Object Description Schema List
> [mailto:[log in to unmask]] On Behalf Of Karen Coyle
> Sent: 30 November 2004 15:42
> To: [log in to unmask]
> Subject: Re: [MODS] info uri scheme and citation ids?
> The info uri could easily include a DOI or a SICI (although
> the SICI hasn't been registered yet). However, I don't think
> using "info" solves the underlying problem, which is that the
> same article needs to be given the SAME identifier by
> different people/databases, and there is no universal
> identifier that currently is one-to-one with the article.
> kc
> On Mon, 2004-11-29 at 19:09, Bruce D'Arcus wrote:
> > On Nov 29, 2004, at 10:16 PM, Karen Coyle wrote:
> >
> > > The problem with all of these solutions is that they break down
> > > because the underlying metadata can have variations that
> then affect
> > > the creation of the identifier, but in some cases the
> identifier is
> > > the same in different systems. The advantage is that the
> identifier
> > > can be derived from the metadata, therefore there is a
> chance that
> > > different systems will derive the same identifier (which
> isn't true
> > > with arbitrary IDs).
> >
> > What do you think about my idea of a flexible system drawing on the
> > info uri thing?  E.g.:
> >
> >         <citation><biblioref
> > linkend="info:doi/10.1000.10/12345"/></citation>
> >
> > Bruce
> --
> -------------------------------------
> Karen Coyle
> Digital Library Specialist
> Ph: 510-540-7596 Fax: 510-848-3913
> --------------------------------------

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