2. Scheme:
A set of metadata elements and the rules for their
use that have been defined for a particular
purpose
2
3. Dublin Core Metadata Government
Element Set (DC) Information Locator
Visual Resources Service Profile
Association Core GEM (Gateway to
Categories (VRA) Educational
Encoded Archival Materials)
Description (EAD) ONIX
Data Documentation Content Standard for
Initiative Digital Geospatial
Metadata (CSDGM)
3
4. Semantics – meanings of metadata elements
Content rules – selection and representation of
metadata element content
Syntax – encoding of elements
4
5. AACR2 specifies element names and definitions
(e.g., author, other title information, publisher)
[semantics]
AACR2 also specifies content rules (e.g.,
selection and representation of author names)
ISBD and MARC specify syntax
◦ 245 $a Title : $b other title information / $c author.
5
6. Some schemes can accommodate multiple
content standards
Examples:
DC + DACS + LCSH
DC + AACR2 + LCSH
MARC + AACR2 + MeSH
7. Documenting the creation, version, and reuse of
information resources
Organization and description
Validation – documenting the authoritativeness or
trustworthiness of the information resource
Search and retrieval
Utilization and preservation
Accessioning and deaccessioning
8. Is metadata always digital?
◦ No. Metadata can also exists in paper form.
Is metadata always descriptive?
◦ No. Metadata can also record the creation,
management, preservation, and history of an
information resource.
True or False: Metadata for a given information resource can
come from many sources.
◦ True.
9. True or False: Metadata accrues during the life of a digital
object.
◦ True.
True or False: Metadata is not data and data is not metadata.
◦ False. “The distinctions between what constitutes data
and what constitutes metadata can often be very fluid.”
10. Increased accessibility
Retention of context
Expanding use
Learning metadata
System development and enhancement
Multiversioning
Legal issues
Preservation and persistence
11. High quality descriptive metadata…
◦ Enhances retrieval
◦ Enables searching across multiple collections
◦ Enables creation of virtual collections
Especially possible when common elements are
present in different metadata schemes
Example: OSU’s conversion of EAD/DACS-based
finding aids to MARC bibliographic records (M.
Elwood Smith papers)
http://oasis.oregonstate.edu/
12. Metadata can document the relationships that an
information resource has with people, places, and
things, including other information resources
Example: Archival finding aids can indicate other
related collections as well as the structure of
within a collection, providing context for users
13. Provides access to the entire universe of users,
wherever they are
Enables the manipulation of the information
resource for users with special needs, different
language skills, etc.
14. Specialized forms of metadata can be used to
promote learning by students of all ages.
Example: http://
www.thegateway.org/browse/20651
15. Metadata can document changing uses of
systems and content
In turn, can use this feedback to make systems
development decisions
Examples: search log data, download counts, etc.
16. A digital object may exist in several forms within a
resource, such a images in thumbnail and full-size
Metadata enables users and machines to
distinguish between the multiple versions of a
resource
17. Metadata documents:
◦ Licensing
◦ Legal rights
◦ Reproductions
◦ Restrictions on access or use
◦ Privacy concerns
18. Technical, descriptive, and preservation metadata
◦ Document how an information resource was:
created,
maintained,
how it relates to other information objects
Notes de l'éditeur
Starting point is really the “particular purpose”. After reading slide: Do you know of any metadata schemes?