Proposal for a Schema.org ‘extent’ property

Hi all in the Schema Bib Extend Group
<https://www.w3.org/community/schemabibex/>.

In one of our sister groups - Schema Architypes
<https://www.w3.org/community/architypes/>, we are working on a proposal to
extend the Schema.org vocabulary to support the description of archives and
their contents.

As part of this proposal we have been looking at a property to describe
‘extent’ as laid out here <
https://www.w3.org/community/architypes/wiki/Extent_proposal>.  A long
while back we in the Bibextend group discussed extent but could not
identify a consistent approach to its use.  The Archive proposal makes use
of QuantitativeValue <http://schema.org/QuantitativeValue> to aid the
detailed description of some of the terms found in extent whilst retaining
Text as a value as a fall back for when such detail is not extractable from
source metadata.

As there is significant overlap on the subject of extent between libraries
& archives, I am asking this group to also consider this part of the
archives proposal for applicability to bibliographic resources.

I am suggesting that the proposed materialExtent property has it’s domain
extended to include CreativeWork.

Comments please.

~Richard.


Richard Wallis
Founder, Data Liberate
http://dataliberate.com
Linkedin: http://www.linkedin.com/in/richardwallis
Twitter: @rjw