Metadata Standards for Data

Joan StarrCalifornia Digital Library

June, 2012@joan_starr

Second thoughts about

Our roadmap

A brief January recapWhat’s new?Special focus:

DOI’s & ARKs

By I like http://www.flickr.com/photos/ilike/1174736310/

California Digital Library (CDL)

Back in January…

• Requirements for dataset description– Common element: long-term identifier, e.g. DOIs

• A organization for promoting DOIs for datasets: DataCite

• A tool for creating & managing: EZID

• Metadata for describing datasets

What is new?

• Requirements for dataset description– Common element: persistent identifier, e.g. DOIs

• A organization for promoting DOIs for datasets: DataCite

• A tool for creating & managing: EZID

• Metadata for describing datasets

EZID: long-term identifiers made easy

take control of the management

and distribution of your research,

share and get credit for it, and

build your reputation through its

collection and documentation

Primary Functions1. Create long-term identifiers2. Manage identifiers over time3. Manage associated metadata over time

http://n2t.net/ezid

http://n2t.net/ezid

http://n2t.net/ezid

http://n2t.net/ezid

http://n2t.net/ezid

http://n2t.net/ezid

http://n2t.net/ezid

http://n2t.net/ezid

http://n2t.net/ezid

DataCite Metadata 3.0 Update

• ISO 26324:2012: DOI• Dublin Core Application Profile• A few new additions to controlled lists…• ¿additions to the description of dataset?• Collection time• Collection geo-location

http://content.cdlib.org/ark:/13030/tf0v19n605/, courtesy of UC Davis Special Collections

• both can work like regular hyperlinks.• both can refer to a

subset or portion of a resource.

• both become persistentwhen the target URL is maintained.

DOIs and ARKs

• Case sensitive• Special feature supports granularity• Informative• Less costly

DOIs vs ARKs

• location: http://x.y.z/foo/Big4/db /*

• string: ark:/99999/Big4/*

DOIs vs ARKs: suffix pass-through

“prefix” “suffix”

• string: ark:/99999/Big4

• location: http://x.y.z/foo/Big4/db

DOIs vs ARKs: suffix pass-through

/table/cell/45-8.txt

/table/cell/45-8.txt

• Established brand in publishing• Indexed by major A&I citation databases • Cannot be deleted• More costly

DOIs vs ARKs

Plays well with others….

For more information

EZIDEZID: http://n2t.net/ezid/ EZID on Twitter: @ezidCDL

DataCiteDataCite: http://datacite.org/DataCite Search: http://search.datacite.org

Joan Starr: uc3@ucop.edu @joan_starr