Holdings
Status: Abandoned - see Holdings via Offer for the recommended best practice
Some examples are at http://kcoyle.net/holdings.html
Library Holdings
Create a Class subordinate to http://schema.org/Library
Thing > Organization > LocalBusiness > Library > LibraryHoldings
Definition: A statement of library holdings, with location, shelf number, and available service offers.
Shelf location
| Property | Expected Type | Description |
| shelfLocation | Text | The library branch or specific shelf location, e.g. "Serials room" "West branch" "Ref" "Oversize" |
Call number
| Property | Expected Type | Description |
| callNumber | text | The assigned number that is used to locate the item. |
Examples:
- "676.3"
- "676.3 c.1"
- "Fiction"
- "Mystery"
- "Oversize 676.3"
- "Micro123"
Holdings statement
This is primarily used for serials and other multi-volume works where the library needs to state which volumes or numbers it owns.
| Property | Expected Type | Description |
| holdings | text | Statement of holdings, mainly for multi-volume works |
Examples:
- v.13(1991), v.20(2000)-v.32:3(2001)
- BACK ISSUES IN STORAGE: Dec 29 2008-Jun 28 2010 (v.172:25-175:25); Jan 9 2012- ; BOUND VOLUMES IN STORAGE: 1925-Dec 2006 (v.5-168); Ask at Reference Desk for specific volume/issue availability
- 1960-2008 (v.95-172)
Note: http://schema.org/owns would seem to be usable here, although the properties in http://schema.org/ownershipInfo do not easily fit this case.
Availability/status
| Property | Expected Type | Description |
| status | text | Status or availability of the item, such as "On shelf" "Checked out" "Library use only" |
Note: itemAvailability is an enumeration, such as: Thing > Intangible > Enumeration > ItemAvailability > InStoreOnly. To use this we would need to have a definitive list availability types, which is not realistic. However, could we use ItemAvailability as the type and schema.org/name for the availability/status?
User options
Subordinate to Thing -> Intangible -> Offer
Services and actions offered to users such as "Download" "Place hold" "Request". Offer has "itemOffered" but nothing about offered services.
| Property | Expected Type | Description |
| serviceOffered | text | Service being offered |
Examples
EXAMPLE In Microdata
<div itemscope itemtype="http://schema.org/Book">
<span itemprop="name">Moby Dick; notes</span> -
by <a itemprop="author">Robers, James Lamar, 1929-</a>
</div>
<p>
<div itemscope itemtype="http://schema.org/libraryHoldings">
<span itemprop="shelfLocation">Central Library</span>
<span itemprop="callNumber">809c M497m</span>
<span itemprop="status">CHECK SHELF</span>
</div></p>
<p>
<div itemscope itemtype="http://schema.org/libraryHoldings">
<span itemprop="shelfLocation">Central Reference Desk</span>
<span itemprop="callNumber">809c M497m</span>
<span itemprop="status">LIBRARY USE ONLY</span>
</div></p>
<p>
<div itemscope itemtype="http://schema.org/libraryHoldings">
<span><a href="/iii/encore/holdRequest/?">
<img="hold.png"><a href="http://example.com/hold1234587" /></a>
<span itemprop="serviceOffered" >Hold this for me</span></span>
<a href="/iii/encore/listRequest/?">
<img="list.png"><a href="http://example.com/list23454/" /></a>
<span itemprop="serviceOffered">Add to marked list</span></span>
<a href="/iii/encore/infoRequest/?">
<img="info.png"><a href="http://example.com/info1234587" /></a>
<span itemprop="serviceOffered">More info</span></span>
<a href="/iii/encore/exploreRequest/?">
<img="explore.png"><a href="http://example.com/explore1234587" /></a>
<span itemprop="serviceOffered">Explore</span></span>
</div>
</p>Click here to see Rich Snippet