20101020 harper

2010-10-20 Harper - Registry Community Meeting - DC2010 1

Metadata Registries Survey

• Distributed Tuesday, July 14, 2009• Open until Midnight, July 31, 2009• 2 sets of questions

– Registry developers / admins– Registry users

• 5 sections of questions

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5/6 Sections of Questions

• General Intro (forked)• Registry Contents (forked)• Technical Details (forked)• Registry Policy (forked)• Dissemination (forked)• Inter-registry Interoperability

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Distribution Channels

• DCMI General List• DCMI Registries Task Group

Members• DCMI Registries Community List• code4lib listserv• Metadata Librarians listserv

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Distribution Channels (Cont)

• W3C's linked data list• NKOS List *• XMDR Working Group *• CENDI Image Metadata Task Group

** Courtesy of Gail Hodge

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Preliminary Results

• 35 Completed of 100 Partial Responses– 12 Involved in Registry Admin– 23 Not Involved in Admin

• 41 % (5 of 12) reported registry contents over 1000 entries

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Represented Registries

• Oxford Vocabs and Taxonomies• DCMI's New Zealand Mirror• STScI (astronomy)• OCLC Terminology Services• 6 Others

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Other Institutions

• Library of Congress• Ex Libris• National Univ. of Ireland, Galway• Baylor Univ.• Approx. 12 Others

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Software Availability

• 2 Commercially Available Registry• 4 Open Source• 4 May be Released• 2 No Plans to release

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Registry Contents• Contents based on 12 responses

– 83% Contain Controlled Vocabs– 66% Contain Metadata Terms– 50% RDF Properties / Classes

• 7 of 12 Multilingual• Highest Demand from Users (90%)

is for Metadata Terms

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Missing Components

• Export vs Viewing Data• Harvest vs Manually Add Content• Content Negotiation• XML versus RDF• Linked Data• Version Control

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Interoperability Scenarios

1. Publish Change Sets via RSS2. Thin Registries by query or by

reference3. OAI Harvestable Content

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Summary

• Linked Data– HTTP URIs– Content Negotiation– Desirable to End-Users– 4 Registries indicate as a next step

• Publishing of Changesets as feeds

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Further Analysis

• Cross-tabulation of non-owner results for app developers vs non

• Analysis of incomplete results• Follow-up questions to

respondents?• Analysis of Policy and

Dissemination Questions

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Thanks!

corey.harper@nyu.edu212.998.2479