2011-03-19T09:31:52+01:00 The OpenRecommender Recommendation schema specification provides basic concepts and properties for describing recommendations on the Semantic Web. This document contains a simplified RDF Schema description of the Recommendation Ontology, which itself is more complete than this schema, but slightly more complicated to work with through the introduction of Web Ontology Language(OWL). OpenRecommender Recommendation Schema Recommendation A recommendation is a formal or informal proposition for action. Identifies a recommendation to a person, integrated software or device. identifier Person (or software/device) a recommendation comes from. sender Person (or software/device) a recommendation goes to. receiver Date a recommendation was sent. date Time a recommendation was sent. time Latitude of location from which recommendation was sent (or of the item itself, if applicable). latitude Longitude of location from which recommendation was sent (or of the item itself, if applicable). longitude Importance measure assigned to a recommendation. priority Type of content (as in taxonomy domain area) being recommended. type Title The title of a given recommendation. Length of the media being recommended (optional). duration Language of the item being recommended (optional). language Closed Caption transcript of the item being recommended (optional). captions Language of the item being recommended (optional). subtitles Language of the item being recommended (optional). playlist Image Preview image or thumbnail of a given recommendation. Creator of the item being recommended (optional). creator Publisher of the item being recommended (optional). publisher Format (i.e. MIME Type and/or File extension) of the item being recommended (optional). format Rights (i.e. Copyright and/or License) of the item being recommended (optional). rights Rights Holder (i.e. legal owner of Intellectual Property or license) of the item being recommended (optional). rightsHolder Link Web link (URL) to a human-readable display page for the recommendation. Shortlink (i.e. URL shortner version) of the item being recommended (optional). shortlink Location (i.e. download URL) of the multimedia representation of the item being recommended (optional). location Mobile-friendly display page (baseline experience that should work on any browser that can render HTML) for the item being recommended (optional). mobile Legacy mobile display page (WAP, for older phones that are incapable of rendering even basic HTML) for the item being recommended (optional). mobilewap Mobile Touch-friendly display page (with a more advanced or graduated experience for larger screens and/or more powerful devices such as tablets or smartphones) for the item being recommended (optional). mobiletouch Location (i.e. download URL) of a Mobile-friendly version of the multimedia representation of the item being recommended (optional). mobiledownload Mobile-friendly multimedia stream of the multimedia representation of the item being recommended (optional). mobilestream Description Textual description of what topics or events the recommendation is about (optional). User rating (whether as a weighted average of all users, or, only taken from the recommending user's rating profile) of the item being recommended (optional). rating A collection of reviews (or single review) about the item being recommended (optional). review Metadata tags, descriptive labels or other classification code to describe the item being recommended (optional). subject A collection of comments (or single comment) about the item being recommended (optional). comment application/rdf+xml application/rdf+xml application/rdf+xml application/rdf+xml