Science Environment for Ecological Knowledge
Ecoinformatics site parent site of Partnership for Biodiversity Informatics site parent site of SEEK - Home
Science Environment for Ecological Knowledge




Eco Grid Identifiers


EcoGrid needs to provide a consistent identification scheme for data objects and metadata records in the system, among other things. This identifier format should allow for the creation of globally unique identifiers, hopefully with a local part that is assigned at the participating service rather than centrally.

Proposed Identifier Formats

In the past meetings we've discussed trying to standardize our identifier formats, but so far none of the systems (srb, metacat, etc) will accept identifers of the format we've discussed. In Edinburgh, our proposed ID format was:


where scope is a symbolic name from the registry that can be used to look up the wsdl (and therefore endpoint) of the EcoGrid query service.

However, we've also discussed using LSID's as the taxon group is doing, which take the form:


The revision is optional, and taxon and ecogrid have both agreed that it should NOT be used (and that any versioning information belongs in the metadata). The authority is a DNS name that resolves via DNS to a service that can be used to resolve the LSID to actual physical locations. 'Namespace' is analogous to our 'scope', and 'objectId' is analogous to our 'localIdentifier'. So, this is similar to our proposal above, but relies on DNS instead of our registry for the resolution service.


LSID Specification
LSID Java Tutorial

Go to top   Edit this page   More info...   Attach file...
This page last changed on 03-Sep-2004 14:53:50 PDT by NCEAS.jones.