]> 0.8 Ratings Ontology Ratings about heterogeneous items. Cristiano Longo at TvBlob S.r.l Milan, Italy Rating a sort of preference, or judgment, assessed by a user or a software agent about a generic item. 1 1 1 1 assessedBy The rating asserter. about The rated item. value A numerical value assigned to this rating. collectedBy The engine that collected this rating. RatingsCollector An engine that collects ratings. Usually a web site or an automated agent. 1 Allowed Rating Values Enumeration Models a discrete finite ratings set via exhaustive enumeration of available rating values. 1 0 0 0 Allowed Rating Values Interval Describe the set of allowed rating values as an interval. 0 1 1 1 mode How this ratings has been collected. Implicit collection mode Implicit model should be used when the ratings collector does not ask explicitly the user to enter a rating, but observe the user behaviour to infer the rating value. Explicit collection mode Must be used with rating collectors that deal with ratings assessed explicitly by users. hasAllowedRatingValue Used to describe allowed rating values discrete finite set. Add a value to a discrete finite set of allowed rating values. Ratings Range Lower Bound Lower bound of the allowed ratings interval. This value belong to the interval. Ratings Range Lower Bound Upper bound of the allowed ratings interval. This value belong to the interval. Equally spaced ratings distance Distance between two consecutive ratings in the allowed ratings interval.