Wikidata:WikiProject Political Buttons/SDC for a digitized political button
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This page will be used to document Harvard Library IT's data modeling for SDC statements, based on DPLA's. This page is a draft in progress, with borrowed language that is in the process of adaptation.
Wikidata property | Sample values | Sample file | Derivation | Notes |
---|---|---|---|---|
identifier property of some sort | example ID value |
example item | The ID of the item being uploaded from. |
|
described at URL (P973) | URL example |
example item | Should this be the CURIOsity URL (which would be the "source catalog"/"isShownAt" URL in DPLA) for now? Plan on adding a (tbd) DPLA URL if applicable in the future? |
|
source of file (P7482) | file available on the internet (Q74228490) | example file | Same as above, with URL in described at URL (P973) as qualifier instead. | Go with DPLA decision? "Instead of initial proposal above, after discussion, this has been implemented with source of file (P7482) and file available on the internet (Q74228490) as value, per convention, with described at URL (P973) as a qualifier of that with URL as value. Using only the contributing institution URL instead of DPLA, which is in the reference." |
URL (P2699) | https://ark.digitalcommonwealth.org/ark:/50959/z603tb28p/large_image |
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The exact URL that was uploaded, may or may not come from the data (if it was found via IIIf manifest instead). |
|
IIIF manifest URL (P6108) | https://ark.digitalcommonwealth.org/ark:/50959/z603tb264/manifest |
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This is the exact value of the "iiifManifest" field in DPLA's data. |
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copyright status (P6216) | copyrighted (Q50423863) | ![]() |
If the file has a rights URI of Public Domain Mark or No Copyright-United States, apply public domain, otherwise copyrighted. |
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copyright license (P275) | Creative Commons Attribution-ShareAlike 4.0 International (Q18199165) | ![]() |
Each of the valid URIs for DPLA's rights field (aside from PD ones) will be mapped to the correct Wikidata item/property for each RightsStatement.org statement item or Creative Commons license item. | |
RightsStatements.org statement according to source website (P6426) | No Copyright - United States (Q47530911) | ![]() | ||
title (P1476) | "A Rill from the Town Pump" essay by Sarah (Sallie) M. Field, Abbot Academy, class of 1904 |
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Exact string of DPLA's "title" field. |
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Commons media contributed by (P9126) | John F. Kennedy School of Government (Q49127)? | example | How specific should this be? | |
collection (P195) | Create item for collection? | example | DPLA: "This would probably be where we put only the contributing institution." | |
page(s) (P304) | 1 |
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This is not from DPLA's data, but the page increment, the same that is computed and included in the file name, based on the number of media files in an item. |
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author name string (P2093) | Department of State. Agency for International Development. 1961-10/1/1979 |
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This is primarily coming from DPLA's creatorfield, but could also incorporate values from other less common fields (e.g. publisher). |
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creator (P170) | somevalue |
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Same as above. | Instead of initial proposal, after discussion, this has been implemented as creator (P170) with somevalue value, and author name string (P2093) is used as a qualifier of that.
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original catalog description (P10358) | A postcard from the Ken Levin Toledo Postcard Collection, donated by Toledo resident, Ken Levin. The collection contains picture postcards about the Toledo area. Mr. Levin’s collection was published by the Toledo Blade in a book entitled “You Will Do Better in Toledo: From Frogtown to Glass City”, edited by Sandy and John R. Husman. |
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From DPLA description field. |
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DPLA subject term (P4272) | Postcards | ![]() |
From DPLA subjects field. |
This property is used to display DPLA subjects. Because they are uncontrolled and can't be reliably matched to other entities, this formats the subject as a search query URL in the DPLA catalog. |
access restriction status (P7228) | unrestricted access (Q66739888) | ![]() |
This comes from the stringValue blob in the original record, which is also accessible via DPLA API. This is only being added to files uploaded for NARA currently. |
The values here are a set of terms, such as "unrestricted", which are matched with their Wikidata items. |
level of description (P6224) | item (Q11723795) | ![]() |
This comes from the stringValue blob in the original record, which is also accessible via DPLA API. This is only being added to files uploaded for NARA currently. |
The values here are a set of terms, such as "item", which are matched with their Wikidata items. |
U.S. National Archives Identifier (P1225) | 146926628 |
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This comes from the stringValue blob in the original record, which is also accessible via DPLA API. This is only being added to files uploaded for NARA. |
Since there is a dedicated property for NARA IDs, this will be added as well as the DPLA IDs for NARA uploads. When this is added, the NAID is not added with P217, even though it is coming from the DPLA identifier field. |
inception (P571) | 21 September 1916 |
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DPLA has a date object field with uncontrolled text, but will be able to add the values from this field if they match certain common formats like YYYY-MM-DD | |
inventory number (P217) | sn86090249 |
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This comes from the DPLA identifiers array, which has uncontrolled identifier strings from the provider. |
In addition to the DPLA ID, we add inventory number (P217), with collection (P195) as qualifier, using all the values that represent the local identifier used by the source institution. This is ignored in the special case of NARA, as noted above, which has its own property. |