- From: Martin Hepp <martin.hepp@ebusiness-unibw.org>
- Date: Fri, 8 Oct 2010 01:34:54 +0200
- To: semantic-web@w3.org, public-lod@w3.org
Dear all: After thorough testing, we have just deployed a service update of the GoodRelations vocabulary at http://purl.org/goodrelations/v1 It is 99.99% backwards compatible with all existing data and applications. ============================ Please refresh your cashes! ============================ The main changes are as follows: 1. Using gr:Offering becomes a lot easier for the simple case of just one product per offer. Accordingly, the use of gr:ActualProductOrServiceInstance or gr:ProductOrServicesSomeInstancesPlaceholder becomes obsolete for marking up data in 90 % of the cases. 2. We defined typical properties for the product name, a description, the condition, weight, dimensions, and color directly in GoodRelations, so that using a second ontology for product features becomes unnecessary for just those standard properties. 3. For quantitative values, gr:QuantitativeValue can now be used as a fully-fledged value class, instead of just gr:QuantitativeValueFloat and gr:QuantitativeValueInteger. The latter remain valid. 4. We added a gr:addOn property that allows publishing optional extensions (additional services or components) that are available only in combination with the base offer. 5. There is now a gr:valueReference property for linking a value to one or more values that provide context for that value (e.g. temperature, revolutions per minute, etc.). The full list of changes is attached below. Best wishes Martin Hepp -------------------------------------------- 2010-09-16: Service Update Summary • Added gr:condition property • 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) • Changed the domain of gr:serialNumber to the union of gr:Offering and gr:ActualProductOrServiceInstance • Changed the domain of gr:hasInventoryLevel to the union of gr:Offering and gr:ProductOrServicesSomeInstancesPlaceholder • Added a gr:category property for attaching product category information in a lightweight manner if no dedicated ontology exists • Added a gr:name property as a shortcut for dc:title and rdfs:label • Added/reactivated the gr:description property as a shortcut for rdfs:comment and dcterms:description. Also changed the domain to owl:Thing • Defined the product features gr:weight, gr:width, gr:height, gr:depth, and gr:color directly in GoodRelations • 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). • Changed the cardinality recommendation for gr:hasMinValue and gr:hasMaxValue to 0..1 and updated their textual definition. • 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 • Added the range rdfs:Literal to all text properties, i.e. gr:condition, gr:description, gr:legalName, and gr:category • Removed unused namespace declarations xmlns:swrl="http://www.w3.org/2003/11/swrl# " and xmlns:swrlb="http://www.w3.org/2003/11/swrlb#" • Added UN/CEFACT unit recommendations to gr:weight, gr:width, gr:height, and gr:depth • 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 • Updated the UML class diagram accordingly • Added rdfs:isDefinedBy to all new elements • Fixed the rdfs:comment of gr:QualitativeValue • Polished the text of the ontology meta-data • Fixed the text of gr:BusinessEntity to make clear it can also be used with gr:seeks and that stores are gr:LocationOfSalesAndServiceProvisioning • Polished the text of gr:BusinessFunction • Updated the text of gr:Offering to reflect the new gr:includes shortcut to model data • Polished the text for gr:ProductOrService 2010-07-27: Service Update V (not officially deployed, thus also mentioned in here) * Added gr:hasMPN property * Changed the text of gr:hasStockKeepingUnit slightly in order to differentiate from hasMPN * Added gr:valueReference property * Added gr:addOn property * Added gr:Offering to the range of gr:hasEligibleQuantity and updated the text for gr:hasEligibleQuantity accordingly.
Received on Thursday, 7 October 2010 23:35:31 UTC