University of Glasgow

Roderic Page

One of the judges for the [Elsevier Article 2.0
Contest](http://iphylo.blogspot.com/2008/11/elsevier-article-20-contest.html)
is [Andrew Perry](http://blog.pansapiens.com/), whose blog has some
posts on Noel O\'Boyle\'s OpenRef idea (see [DOI or DOH? Proposal for a
RESTful unique identifier for
papers](http://baoilleach.blogspot.com/2008/01/doi-or-doh-proposal-for-restful-unique.html)).
Andrew discusses [some
implementations](http://blog.pansapiens.com/2008/06/06/resolveref-updated-now-with-auto-suggest-and-source-code/)
he has come up with, and compares OpenRef with OpenURL. This prompted me
to add OpenRef-style identifiers to [bioGUID\'s OpenURL
resolver](http://bioguid.info/openurl).  
  
Basically, OpenRef is a human-readable identifier for an article, based
on concatenating the journal name, year of publication, volume number,
and starting page, for example:  
  
[openref://BMC
Bioinformatics/2007/8/487](http://bioguid.info/openref/BMC%20Bioinformatics/2007/8/487)  
  
The equivalent OpenURL link would be  
  
[http://bioguid.info/openurl/?genre=article &title=BMC%20Bioinformatics
&date=2007 &volume=8
&spage=487](http://bioguid.info/openurl/?genre=article&title=BMC%20Bioinformatics&date=2007&volume=8&spage=487)  
  
Andrew notes:  

> A key cosmetic (and philosophical) difference between OpenURL and
> OpenRef/ResolveRef URLs is that OpenURL uses HTTP GET fields, eg
> ?title=bla&issn=12345, while OpenRef/ResolveRef uses the URL path
> itself eg, somejournalname/2008/4/1996. It's a bit like one scheme was
> designed in the age of CGI scripts, while the other was designed for
> web applications capable of more RESTful behaviour. In my mind OpenURL
> is more versatile but much uglier, while OpenRef is cleaner and
> simpler but can only reference journal articles.

Of course, it is straightforward to add openref-style URLs to an OpenURL
resolver by using URL rewriting, for example:  
  

    RewriteRule ^openref/(.*)/([0-9]{4})(.*)/(.*) 
    openurl.php?title=$1&date=$2&volume=$3&spage=$4&genre=article [NC,L]

  
I\'ve done this for my [resolver](http://bioguid.info/openurl). One
limitation of OpenRef is that there are many different ways to write a
journal\'s name, so you can\'t determine whether two OpenRef\'s refer to
the same journal by simply string matching (as you can with a DOI, for
example \-- if the DOI\'s are different the article is different). For
example I might write *BMC Bioinformatics* and you might write *BMC
Bioinf.*. One way around tis is to have unique identifiers for journals,
which of course is the approach Robert Cameron advocated with [Universal
Serial Item Names and
JACC\'s](http://iphylo.blogspot.com/2007/10/universal-serial-item-names.html).
The obvious candidate for journal identifier is the ISSN. I guess the
problem here is that it\'s easier to use the journal name rather than
require the user to know the ISSN. OpenRefs are certainly easier to
write. Hence, I think they are great as a simple way for people to
construct a resolvable URL for an artcle, but not so great as an
identifier.


One of the judges for the Elsevier Article 2.0 Contest is Andrew Perry, whose blog has some posts on Noel O'Boyle's OpenRef idea (see DOI or DOH? Proposal for a RESTful unique identifier for papers). Andrew discusses some implementations he has come up with, and compares OpenRef with OpenURL.

Postagens de Rogue Scholar

OpenRef and bioGUID