Commons:Structured data/Modeling/Meta

Structured Commons

About

Get involved

GLAM and culture

SPARQL

Modeling

Discussion

	Please help! – Work in progress
	You can help by working on guidelines and providing examples below. Visit the talk page to discuss this process in general.

How to model various types of file metadata and exif(-like) data in structured data, for files on Wikimedia Commons

Modeling various types of metadata and exif(-like) data related to Wikimedia Commons files

Type of metadata	Wikidata property	Status
Type	instance of (P31)	Work in progress
Exposure time	exposure time (P6757)	Work in progress
F-number	f-number (P6790)	Work in progress
Focal length	focal length (P2151)	Work in progress
ISO speed rating	ISO speed (P6789)	Work in progress
MIME type	media type (P1163)	Work in progress
Number of pages	number of pages (P1104)	Work in progress
Data size	data size (P3575)	Work in progress
Duration	duration (P2047)	Work in progress
Width	width (P2049)	Work in progress
Height	height (P2048)	Work in progress
Checksum	checksum (P4092) with qualifier determination method (P459)	Work in progress

Properties not to use

These properties shouldn't be used

Property	Replacement	Notes
Commons category (P373)	location of creation (P1071) or depicts (P180) and others	Record the information about the category instead, i.e., use depicts (P180) for what is depicted or use location of creation (P1071) if it's about where to photo was created.
file format (P2701)	Should use media type (P1163) instead	Duplicate information

Examples

• 
  Winter sunset in Maratea - Italy 2015.JPG exposure time (P6757) → 0.008, f-number (P6790) → 6.3, focal length (P2151) → 28 millimeter, ISO speed (P6789) → 100, media type (P1163) → image/jpeg
• 
  Umeda Sky Building, Osaka, November 2016 -02.jpg exposure time (P6757) → 0.0166, f-number (P6790) → 4.5, focal length (P2151) → 25 millimeter, ISO speed (P6789) → 320, media type (P1163) → image/jpeg