Warning: This tool or project is no longer maintained and kept available only for archival purposes. Since GoodRelations and schema.org have evolved significantly in the past years, the current status available on this page is unlikely to function as expected. We take no responsibility for any damage caused by the use of this outdated work, to the extent legally possible.

Due to a lack of resources, we are unable to provide support for this project outside of consulting projects or sponsored research. Please contact us if you can contribute resources to update and enhance these resources.

GoodRelations - The Web Vocabulary for E-Commerce

This is the archive of the goodrelations dicussion list

GoodRelations is a standardized vocabulary for product, price, and company data that can (1) be embedded into existing static and dynamic Web pages and that (2) can be processed by other computers. This increases the visibility of your products and services in the latest generation of search engines, recommender systems, and other novel applications.

[goodrelations] Preview: GoodRelations Service Update 2010-04-12

Martin Hepp (UniBW) martin.hepp at ebusiness-unibw.org
Mon Apr 19 10:08:14 CEST 2010

Dear all:

We pretty much finalized a service update for GoodRelations, which 
mainly defines a few additional properties that are important for the 
rental and accommodation business. Also, we redesigned the language 
reference in HTML completely.

Except for a few minor issues listed below, the update is fully 
backwards-compatible and should not break existing data or code.

A preview is available at


An UML diagram highlighting the planned extensions is at


A change log is at


Please report any suggestions or feedback before Thursday, April 22, 
2010. We plan to officially release the service update on Friday.

- validity dates for opening hours
- new gr:owns property for indicating the products that you own, which 
allows exposing ownership data for future recommender systems
- availability intervals for offers, important for rental businesses
- eligible contract durations and advance booking requirements
- shipping and delivery charges can now be constrained to order volumes 
in terms or quantity or a monetary amount ("free shipping from 20 USD 
- ordering relations for qualitative values, which may be useful e.g. 
for modeling garment sizes (XL>L>M>S) etc.

Backward Compatibility:
The only changes that may (but should not) affect existing data or code 
are the following:

1. We removed the rdfs:range statement for gr:legalName. It used to be 
xsd:string, but that prevented someone from indicating the natural 
language, since the language tag can only be attached to untyped RDF 

2. We changed the domain of gr:validFrom and gr:validThrough to the 
union of gr:Offering, gr:OpeningHoursSpecification, and 
gr:PriceSpecification instead of just gr:Offering and 
gr:UnitPriceSpecification. This allows specifying the validity interval 
of offers, opening hours, payment charge specifications, and delivery 
charge specifications.

The rest are either fixed typos or additional language elements that are 
fully backwards compatible.

Best wishes

Martin Hepp

martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  hepp at ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax:     +49-(0)89-6004-4620
www:     http://www.unibw.de/ebusiness/ (group)
          http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!

Project page:

Resources for developers:

Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

Overview article on Semantic Universe:

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

More information about the goodrelations mailing list