by visual resources association (vra) vra core categories

by Visual Resources Association (VRA)

VRA Core Categories

Content: 17 Categories/elementsFeature:

a DC-like elements set for image collections focuses on visual resource community’s need heavy use of CDWA elements

2

VRA Core 3.0http://www.vraweb.org/resources/datastandards/vracore3/index.html

Record Type Type Title Measurements Material Technique Creator Date Location ID Number Style/Period Culture Subject Relation Description Source Rights

3

VRA CORE CATEGORIES 3.0 17 elements

Discussion in class:

• Please mark those elements that DC has.

• Check the qualifiers at:

http://www.vraweb.org/resources/datastandards/vracore3/index.html

• 3. Discuss the elements that DC did not include.

http://www.vraweb.org/projects/vracore4/index.html

Released 4/9/2007

VRA Core 4.0 changes have been made in order to make the Core XML-compliant.

4

VRA Core 4.0

5

Take an example: Specification for element “DATE”

what kinds of dates to

be described

values allowed

for date 'type'

attribute

how to

formu-late a date

mapping to

other schema

s

Is 'DATE' require

d ? repeat-able?

Element,sub-elements,

attributes

6

(cont.) element “DATE”

How to encode dates

in XML

<work id=""> <dateSet>

<display></display> <notes></notes> <date type=“ ”>

<earliestDate></earliestDate> <latestDate></latestDate>

</date> </dateSet>

</work>

7

Syntax(using date element as example)

<work id=""> <dateSet>

<display></display> <notes></notes> <date type=“ ”>

<earliestDate></earliestDate> <latestDate></latestDate>

</date> </dateSet>

</work>

8

(cont.) Syntax(using date element as example)

Note: green colored are always optional.

9

Display, Indexing, and Annotation

VRA Core XML schema provides each element with two separate subelements, display and notes, for display and annotation purposes respectively.

For display use, optional in the set

For indexing use, required in a set

Work to workImage to Work Image to Collection or Work to Collection

10

Relationships between records

11

Elements changes in 4.0

12

VRA Core 4.0 Elements OverviewVRA Core 4.0 Elements Overview

textbook p. 40

• work, collection, or image (id) • agent

− attribution − culture − dates (type) earliestDate (circa) latestDate

(circa) − name (type) − role

• culturalContext • date (type) − earliestDate (circa) − latestDate (circa) • description • inscription

− author − position − text (type)

• location (type) − name (type) − refid (type)

• material (type) • measurements (type, unit) • relation (type, relids) • rights (type)

− rightsHolder − text

• source − name (type) − refid (type)

• stateEdition (count, num, type) − description − name

• stylePeriod • subject

− term (type) • technique • textref

− name (type) − refid (type)

• title ( type) • worktype

VRA Core 4.0 Elements, Sub-element, & Attributes

12

"Type" attribute's restricted values

14Full list available athttp://www.loc.gov/standards/vracore/VRA_Core4_Restricted_schema_type_values.pdf

used for describing this

values to be used

for this ele-men

t

15

a part of a VRA Core record Go to: http://www.vraweb.org/projects/vracore4/example016.html to see the full record; click "xml" to see the record behind (next slide)

16

a part of a VRA Core XML record Go to: http://www.vraweb.org/projects/vracore4/example016.html Click "xml" (You may need to use Firefox to see this.)

exam this agentSet: Who is the

agent? What is his birth and

death year? Is he an

American? Is he a

painter or an

architect?

What do these dates tell us?

Are they about the artist or about this

statue?

Schemas: http://www.loc.gov/standards/vracore/schemas.html

Examples: http://www.vraweb.org/projects/vracore4/vracore_examples.html

VRA Core 4.0 References

17