Ricardo writes:
Personally, I would hold on to pure LSIDs and avoid using the http proxy as a GUID as much as possible, just to make sure my clients are robust enough. However, the semantics of the proxy software and the RDF returned when the identifier is resolved allow clients to assume the http proxy is in fact a GUID.
My concern is that the choice of LSIDs is based on too narrow a system view. The true system includes biologists, public administrators, other experts, and many kinds on non-LSID-aware software.
Scenario 1: Taxonomist publishes a paper in printed or online journal. Do I use the LSID, knowing no other biologists can interpret this, or do I use the http- GUID, which every biologist reading the paper can follow and retrieve some further information?
Scenario 2: I create a html-based web page for a species account. I could use the lsid as visible id, with the implications above. However, I would certainly like to support my users by linking to the resource and use the http as the link behind the text. From this moment on, for Google and all current other information indexers, the http-URL (which is always a GUID) will become the preferred ID under which this resource can be accessed.
What is the public usability of the GUID system that we plan?
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The desired fall-back safety of Ricardo's scenario:
rdf:RDF <rdf:Description rdf:about="urn:lsid:ubio.org:namebank:11815"> dc:identifierurn:lsid:ubio.org:namebank:11815</dc:identifier> <owl:sameAs rdf:resource="http://lsid.tdwg.org/urn:lsid:ubio.org:namebank:11815" /> ...
can easily be achieved without the overhead of LSIDs, by using:
<rdf:Description rdf:about="http://lsid.ubio.org/namebank/11815%22%3E dc:identifierhttp://lsid.ubio.org/namebank/11815</dc:identifier> <owl:sameAs rdf:resource="http://fallbackresolver.bio- id.org/lsid.ubio.org/namebank/11815"/> ...
Several commentators have mentioned that http-GUIDs have a problem if the resource disappears. I believe this is only true with respect to resolving the GUID. The GUID functionality itself is unaffected if the DNS entry disappears. If ubio disappears, the GUID http://lsid.ubio.org/namebank/11815 can still be used for centuries. The service that resolves may already be published in RDF metadata (through SameAs), or it may be built into some systems.
*** Using something like "bio-id.org" (i.e. registering a new DNS, but running it through existing ifnrastructure (preferably GBIF) would improve future flexibility on who might pick it up, if something happens to tdwg or gbif. ***
Gregor---------------------------------------------------------- Gregor Hagedorn (G.Hagedorn@bba.de) Institute for Plant Virology, Microbiology, and Biosafety Federal Research Center for Agriculture and Forestry (BBA) Königin-Luise-Str. 19 Tel: +49-30-8304-2220 14195 Berlin, Germany Fax: +49-30-8304-2203