niso forum, denver, sept. 24, 2012: ezid: easy dataset identification & management

EZID: Easy dataset identification & management

Joan StarrCalifornia Digital Library

September, 2012@joan_starr

EZID: Easy dataset identification & management

•Why data?•Identifiers 101•EZID: identifiers made easy!• Choosing an identifier• What does this mean for

you?

By barryegan (Vitor Leite) http://www.flickr.com/photos/vixon/116447718/

Data!

By barryegan (Vitor Leite) http://www.flickr.com/photos/vixon/116447718/

Data!

= scholarly communication

What can libraries do?

What this looks like, pt. 1

What this looks like, pt. 2

What this looks like, pt. 2

Identifiers 101

What is an identifier?

What you see: alphanumeric string (never changes)Associated with: location of object (such as a URL)

Optional: who, what, when, etc (i.e. metadata)

By Joelk75: http://www.flickr.com/photos/75001512@N00/2728233597/

Identifier example

string: doi:10.9999/FK40K2GTVhtml version: http://dx.doi.org/10.9999/FK40K2GTV

location: http://www.bologna.edu/biology/xfg/123.xls

metadataCreator: Dr. Felix KottorTitle: Data for chromosomal study of catfish (Ictalurus punctatus)Publisher: University of BolognaPublication Year: 2011

Identifier example

string: doi:10.9999/FK40K2GTVhtml version: http://dx.doi.org/10.9999/FK40K2GTV

location: http://www.state.edu/ecology/783sdr/123.xls

metadataCreator: Dr. Felix KottorTitle: Data for chromosomal study of catfish (Ictalurus punctatus)

Publisher: Dryad Data Repository Publication Year: 2012

Identifiers 201

By Christi Nielsen http://www.flickr.com/photos/christinielsen/476326980/

Identifiers 201

• string: doi:10.9999/FK40K2GTV

“prefix” “suffix”

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

EZID: Easy dataset identification & management

Why data?Identifiers 101EZID: identifiers made easy!• Choosing an identifier• What does this mean for

you?

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• Flexible metadata • Special feature supports granularity

DOIs vs ARKs

DOIs vs ARKs: suffix pass-through

The identifier WILD CARD!

DOIs vs ARKs: suffix pass-through

http://n2t.net/ark:/13030/xt54321 http://example.org/hearts

http://n2t.net/ark:/13030/xt54321/king http://example.org/hearts/king

http://n2t.net/ark:/13030/xt54321/queen http://example.org/hearts/queen

ark:/13030/xt54321 ---> http://example.org/hearts

• Gold standard for citation• Established brand in publishing• Indexed by major A&I citation databases

DOIs vs ARKs

Playing well with others…

What does it all mean?

Well…what would you like to be?

Contact: uc3@ucop.edu

http://www.cdlib.org/services/uc3/ezid/clients.html

For more informationEZIDEZID: http://n2t.net/ezid/ EZID on Twitter: @ezidCDL

DataCiteDataCite Search: http://search.datacite.orgDataCite & CrossRef Citation tool:

http://crosscite.org/citeproc/

UC3 UC3: http://www.cdlib.org/services/uc3/Joan Starr: uc3@ucop.edu @joan_starr