GoodRelationsImages

Adding Images to Offers and Products

Very often, we want to attach images to offers (instances of gr:Offering) or products or services, which can be instances of

• gr:ProductOrServiceModel,
• gr:ProductOrServiceSomeInstancesPlaceholder, or
• gr:ActualProductOrServiceInstance.

The standard way of doing so is using the foaf:depiction and foaf:thumbnail properties. The advantage is that many Semantic Web and LOD tools can automatically display such images.

Note that Yahoo SearchMonkey recommends the media:image property for attaching images, which is a proprietary Yahoo element.
(Definition from 1: An image of something. Use this property to relate a document to an Image object embedded in it or in general to relate an object to an image representation of that object.). Also, rdfs:seeAlso can be used.

If you want to be on the safe side, use all three.

Example in RDFa:

Note 1:

• The namespace prefix foaf: stands for http://xmlns.com/foaf/0.1/.
• The namespace prefix media: stands for http://search.yahoo.com/searchmonkey/media/

Note 2:

• If it is important for your data to remain within OWL DL, you must either import OWL DL ontologies that define those properties or define them as owl:AnnotationProperty or owl:DatatypeProperty.

Example 1 in RDF/XML (just foaf:depiction and foaf:thumbnail):

  ``
  ``The Semantic Web: Real-World Applications from Industry (Semantic Web and Beyond)``
  ``The Semantic Web: Real-World Applications from Industry (Semantic Web and Beyond)``

  ``
  ``

Example 2 in RDF/XML (including media:image):

  ``
  ``The Semantic Web: Real-World Applications from Industry (Semantic Web and Beyond)``
  ``The Semantic Web: Real-World Applications from Industry (Semantic Web and Beyond)``

  ``
  ``
  ``
  ``