Metadata for Special Collections How to Improve Interoperability in CONTENTdm

ALCTS CCS Cataloging Norms Interest GroupALA 2009 Midwinter (January 24, 2009)

Myung-Ja HanChristine Cho*

BackgroundWhy Do We Create Digital Collections?- To Increase Access to Hidden ResourcesWhy Do We Share? - Increases exposure of collections- Broadens user base- We can no longer assume that users will come through the front door, sharing metadata gets us in the flow (Lorcan Dempsey). - from Metadata for You & Me

*

OAI-PMH and CONTENTdmOAI-PMH- Data Providers- Service ProvidersData is Harvested by a SetData is Harvested in Dublin Core*

Methods21 Collections from 15 Institutions - Find Unique Field Names - Where the Field Names Came from - How the Unique Fields were Mapped to Dublin Core - What was Mapped and What was Not*

Types of Collections*

*

Chart1

2

1

1

0

3

1

2

2

0

1

3

0

0

0

1

0

1

1

0

0

1

Number of Elements

Number of Collections

mj edit

CollectionCollection 1 - Jack Bradley Photojournalism Coll.Collection 2 - WWII CorrespondenceCollection 3 - Historical PhotographsCollection 4 - Doc Horrell Photo CollectionCollection 5 -History TapesCollection 6 - HCSHMCollection 7 - LLCollection 8Collection 9 - ALACollection 10 - CartoonsCollection 11 - MotleyCollection 12 - WWI PostersCollection 13 - AMACollection 14 - LAPURCollection 15 - PullmanCollection 16 -Collection 17 - WSUCollection 18 - Western Waters Digital LibraryCollection 19 - BrowardCollection 20 - Central FloridaCollection 21 - Digital Past

Type of Institutionsmall academic library - Bradley Universitysmall academic library - Illinois Weseleyan Universitysmall academic library - Illinois Weseleyan Universitylarge academic library - Southern Illinois University Carbondalepublic library district - Centralia Regional Library Districtmuseum - Henderson County Historical Society Museumlarge public library - Lincoln LibraryNOTE: CAN'T ACCESSlarge academic library - UIUClarge academic library - UIUClarge academic library - UIUClarge academic library - UIUCLOUIS - cannot accessLOUIS - cannot accessindependent research lib.Washington University Lib.Washington University Lib.large academic librariescounty librarygovernmentNorth Suburban Lib. System

Metadata TypeSimple DC (field names are directly from DC)Simple DC and LocalSimple DC and LocalSimple DC and LocalQualified DC and LocalSimple DC and LocalQualified DC and LocalQualified DC and LocalSimple DC and LocalSimple DC and LocalSimple DC and LocalSimple DC and LocalSimple DC and LocalSimple DC and LocalSimple DC and LocalSimple DC and LocalSimple DC and Local

Type of Collection (archival or not)special collection/not archivalspecial collection/not archivalspecial collection/not archivalsingle-item level/archivalsingle-item level/not archivalsingle-itme level/archivalarchivallayers - multiple pageslayers/not archivalsingle-item level/ not archival

Image or Textimagetextimageimageother - audio recordingsimageimageimageimage - cartoon drawingsimage - costume sketchesimagesketch/planimagesaudio and imagesimagesimagesimageimage

total number of Elements1012

Unique, Local Field NamesImage File Name - Call Number - Car Plan Number - Tracing Number - Issue Number - Type of Drawing - Color Profile - Full resolution - not mappedFile Size - FilePhotographer - Notes - Location Depicted - Digital Collection - Order Number - not mappedOrdering Information - not mappedNegative no. - Repository - Repository Collection - PhysListen to Interview - Collection Source - Identifier (WSU MASC) - Repository - Birthdate/Interviewee - Occupation/Interview - Interview date - Length of Interview -

Unique Metadata Fields 21 Collections Used 472 Fields159 fields use Unique Names other than Dublin Core116 Descriptive Metadata35 Administrative Metadata8 Technical Metadata*40 elements were not mapped

*

*Descriptive Metadata (1)- After Normalization

Descriptive Metadata (2)

Not Available in Dublin CoreObjects, People/Place, Producer, ProperName, SeriesTitle, SourceSummary, Support, Technique, Style/Period, SubTheme, PerformanceTitle, ImageTitle, etc

*

Administrative MetadataPhysical Location/Local Identifier Box Number, Shelf Number, Item Number, CD Number, Negative Number, Location Folder, Folder Number, Record Group, Place Kept, Location Collection, Inventory Number, Image File Name, Car Plan Number*

Technical MetadataColor ProfileDigital Reproduction InformationDigitization NoteDigitization SpecificationFile Resolution

*

Lost Information Data Mapped Incorrectly- Of the 159 Local Elements, 37 were Mapped Incorrectly

Unmapped Elements - CONTENTdm Provides the Option to Not Map Local Fields to Dublin Core

*

10 (out of 21) Collections Had Unmapped Fields Of the 40 Unmapped Elements, 9 Could Have Been Mapped to One of the Dublin Core Elements - Examples: Collection to Date Written to

*

Metadata for Special CollectionsNeed Special Elements from Different Metadata Standards to Describe/Manage Resources - VRA Core- CDWA- ObjectID- EAD

*

What We Have Found (1)Describe Both Digital and Physical Resources within the Same Record*

What We Have Found (2)Description is for EVERYTHING?!- Many Local Fields are Mapped to including, Theater Name, Repository, Original Format, Associated People, Inscription, English Translation, etc *

Descriptive, Administrative and Technical Metadata were Mapped to

- 27 unique local fields were mapped to 11 descriptive 8 administrative 8 technical*

How to Create Metadata (1)Think About Functional Requirements- What should be used for Searching- What should be used for Browsing- What should be used Internally

Who are our users?*

How to Create Metadata (2)

SimplicityExtensibilityInteroperability

- from Metadata (2008)*

How to Create Metadata (3)

Include Recommendations for Classes of Data Elements (from Shareable Metadata)

Titles Names Dates Subjects / Topics Language Geographic Places

Identifiers Rights for Resources Bibliographic Citations Types of Resources

*

Suggestion for ExportingWhat to Export?- Data to Include - Data to ExcludeMapped to Qualified Dublin Core Elements, not Simple Dublin CoreAre We Exporting as a Compound Object or Item Level?- Does the Collection consist of 9 books or 2987 Pages?

*

Suggestions for Field Names

Are Qualified Dublin Core Elements not sufficient for our collection?If not, Can Qualifier be Added?

*

Suggestions for Metadata CreationBe CONSISTENT!Create Application Profile for Local Metadata StandardDescribe One ResourceOther Description can be Added as URIOr, Export One Set of Information, not Both

*

Share the Other Information!Create Collection Information Page that Include Collection Policy and Application ProfileInclude the information in Metadata (Collection Title with URL)

from Shareable Metadata and Dublin Core Metadata Harvested through OAI PMH

*

Thanks!

Questions and Comments

Myung-Ja Han (mhan3@illinois.edu)Christine Cho (cncho816@yahoo.com)*

BibliographyDigital Library Federation/National Science Digital Library (2005). Best Practices for OAI Data Provider Implementations and Shareable Metadata. http://webservices.itcs.umich.edu/mediawiki/oaibp/?PublicTOCJackson, A. S., Han, M. J., Groetsch, K., Mustafoff, M., & Cole, T. W. (2008). Dublin Core Metadata Harvested through OAI-PMH. Journal of Library Metadata, 8 (1), (5-21).Park, Jung-ran & Sang Joon Park (2005). Digital collection management software employed by libraries and museums: Evaluation of metadata semantic mapping functionality. Presented at the poster session at ALISE (Association/Library and Information Science Education) annual conference, January 11-14, 2005 in Boston, Massachusetts. http://hdl.handle.net/1860/524Shreeves, Sarah L. (2007). The Dynamics of Sharing: An Introduction to Shareable Metadata and Interoperability. Presentation for Panel on the Dynamics of Sharing: An Introduction to Shareable Metadata and Interoperability. Annual Conference of the Society for American Archivists. Chicago, Il. August 31, 2007. http://hdl.handle.net/2142/2263Zeng, Marcia Lei & Jian Qin (2008). Metadata. New York, NY: Neal-Schuman Publishers.

*

*MJ: I changed 24th to 24*MJ: in my view the label for the x-axis was cut off - it says Number of ElemMJ: I capitalized some of the words to match the other slides. MJ: capitalized some words