Changelog/20100916

Changelog: Service Update September 16, 2010

Summary: This service update was mainly for Google with the goal of simplifying markup as much as possible. In particular, we improved the use of gr:Offering and made changes that make RDFa markup patterns shorter

  1. Added gr:condition property
  2. Changed the range of gr:includes to gr:ProductOrService, which allows much more concise markup in the general case of linking an offer of a single product to model data. Also updated the inference rules for expanding the shortcut (if the object of the triple is a gr:ProductOrServiceModel, one must create both gr:TypeAndQuantityNode and gr:ProductOrServicesSomeInstancesPlaceholder instances)
  3. Changed the domain of gr:serialNumber to the union of gr:Offering and gr:ActualProductOrServiceInstance
  4. Changed the domain of gr:hasInventoryLevel to the union of gr:Offering and gr:ProductOrServicesSomeInstancesPlaceholder
  5. Added a gr:category property for attaching product category information in a lightweight manner if no dedicated ontology exists
  6. Added a gr:name property as a shortcut for dc:title and rdfs:label
  7. Added/reactivated the gr:description property as a shortcut for rdfs:comment and dcterms:description. Also changed the domain to owl:Thing
  8. Defined the product features gr:weight, gr:width, gr:height, gr:depth, and gr:color directly in GoodRelations
  9. Added the range rdfs:Literal to gr:hasMinValue and gr:hasMaxValue so that they become fully usable for annotations (not just for queries, as originally).
  10. Changed the cardinality recommendation for gr:hasMinValue and gr:hasMaxValue to 0..1 and updated their textual definition.
  11. Added a gr:hasValue property, an rdfs:subPropertyOf of gr:hasMinValue and gr:hasMaxValue, which simplifies the markup for quantitative data without breaking existing content
  12. Added the range rdfs:Literal to all text properties, i.e. gr:condition, gr:description, gr:legalName, and gr:category
  13. Removed unused namespace declarations xmlns:swrl="http://www.w3.org/2003/11/swrl#" and xmlns:swrlb="http://www.w3.org/2003/11/swrlb#"
  14. Added UN/CEFACT unit recommendations to gr:weight, gr:width, gr:height, and gr:depth
  15. Updated the intro section: Removed gr:ActualProductOrServiceInstance and gr:ProductOrServicesSomeInstancesPlaceholder from the list of core classes, since they will be less important for very popular cases
  16. Updated the UML class diagram accordingly
  17. Added rdfs:isDefinedBy to all new elements
  18. Fixed the rdfs:comment of gr:QualitativeValue
  19. Polished the text of the ontology meta-data
  20. Fixed the text of gr:BusinessEntity to make clear it can also be used with gr:seeks and that stores are gr:LocationOfSalesAndServiceProvisioning
  21. Polished the text of gr:BusinessFunction
  22. Updated the text of gr:Offering to reflect the new gr:includes shortcut to model data
  23. Polished the text for gr:ProductOrService

Category:Changelog