1. Metadata Standards - Types
1. Standards for data structures and semantics
metadata element sets/metadata schemas/metadata vocabularies
e.g., Dublin Core Metadata Element Set (DCMES)
2. Standards and Guides for data content
created to guide the practices of metadata generation e.g., AACR2, DACS, CCO, Using DC
3. Standards for data values
value encoding schemes (link to list)
e.g., DCMI Type Vocabulary | RFC 4646 Tags for Identifying Languages | AAT | LCSH
4. Standards for data exchange
may be separately designed or bound together with the element sets
e.g., MARC 21, XML, html5 microdata, RDFa 1 2 3 4

2. LCSH AAT TGN DDC AACR2 ->RDA CCO DACS Standards for data contents
Dublin Core
VRA Core
EAD
DC Terms
MARC21
MODS
AACR2
->RDA
CCO
DACS
LCSH
AAT
TGN
DDC
ISO2709 (MARC)
XML
Standards for data structures
Standards for data contents
Standards for data exchange
Standards for data values 1 2 3 4

3. Standards for data structures and semantics –element sets Example 1: Dublin Core Metadata Element Set 1
Elements:

4. Components of an element set: Elements, definitions, best practices, recommended encoding schemes2
Standards and Guides for data content – rules and guides
-- from Dublin Core Metadata Element Set, Version 1.1

5. Content Standards and Guidelines2
Content Standards and Guidelines

6. Standards for data values – value encoding schemes3
Standards for data values – value encoding schemes
For resource types: DCMI Type Vocabulary
For languages RFC 4646 Tags for Identifying Languages
For subjects: Library of Congress Subject Headings
For geographic names: Thesaurus of Geographic Names (TGN)
Standards for data values – Syntax encoding schemes 3
For time: W3DDTF (Encoding Rules for Dates and Times)

7. Standards for data structures and semantics –element sets Example 2: VRA Core 4.0 Element Set1

8. A partial VRA Core record
how to describe a date? See next slide

9. VRA Core 4.0 Specification for element “DATE”1
The specification tells you what to describe about a date and how. 2 2

10. Cont. Example from VRA Core 4.0 Specification for element “DATE”2

11. Content Standards and Guidelines2
There are separately published content standards.
Chapter 1: Object Naming
Chapter 2: Creator Information
Chapter 3: Physical Characteristics
Chapter 4: Stylistic, Cultural and Chronological Information
Chapter 5: Location and Geography
Chapter 6: Subject
Chapter 7: Class
Chapter 8: Description
Chapter 9: View Information
Plus:
Examples
Vocabularies

12. AAT
ULAN
TGN
CONA
Standards for data values: Authorities and Controlled Vocabularies 3
Union List of Artists Names
Art and Architecture Thesaurus
Getty Thesaurus of Geographic Names
used in records:
used in collections:
Cultural Objects Name Authority