Property
Expected Type
Description
Properties from
Property
domainIncludes
Class
Relates a property to a class that is (one of) the type(s) the property is expected to be used on.
inverseOf
Property
Relates a property to a property that is its inverse. Inverse properties relate the same pairs of items to each other, but in reversed direction. For example, the 'alumni' and 'alumniOf' properties are inverseOf each other. Some properties don't have explicit inverses; in these situations RDFa and JSON-LD syntax for reverse properties can be used.
rangeIncludes
Class
Relates a property to a class that constitutes (one of) the expected type(s) for values of the property.
supersededBy
Class
or
Enumeration
or
Property
Relates a term (i.e. a property, class or enumeration) to one that supersedes it.
Properties from
Thing
additionalType
Text
or
URL
An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. Typically the value is a URI-identified RDF class, and in this case corresponds to the
use of rdf:type in RDF. Text values can be used sparingly, for cases where useful information can be added without their being an appropriate schema to reference. In the case of text values, the class label should follow the schema.org
style guide
alternateName
Text
An alias for the item.
description
Text
or
TextObject
A description of the item.
disambiguatingDescription
Text
A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the description to be useful for disambiguation.
identifier
PropertyValue
or
Text
or
URL
The identifier property represents any kind of identifier for any kind of
Thing
, such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See
background notes
for more details.
image
ImageObject
or
URL
An image of the item. This can be a
URL
or a fully described
ImageObject
mainEntityOfPage
CreativeWork
or
URL
Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See
background notes
for details.
Inverse property:
mainEntity
name
Text
The name of the item.
owner
Organization
or
Person
A person or organization who owns this Thing.
Inverse property:
owns
potentialAction
Action
Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
sameAs
URL
URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.
subjectOf
CreativeWork
or
Event
A CreativeWork or Event about this Thing.
Inverse property:
about
url
URL
URL of the item.
Property
On Types
Description
constraintProperty
ConstraintNode
Indicates a property used as a constraint. For example, in the definition of a
StatisticalVariable
. The value is a property, either from within Schema.org or from other compatible (e.g. RDF) systems such as DataCommons.org or Wikidata.org.
inverseOf
Property
Relates a property to a property that is its inverse. Inverse properties relate the same pairs of items to each other, but in reversed direction. For example, the 'alumni' and 'alumniOf' properties are inverseOf each other. Some properties don't have explicit inverses; in these situations RDFa and JSON-LD syntax for reverse properties can be used.
measuredProperty
Observation
or
StatisticalVariable
The measuredProperty of an
Observation
, typically via its
StatisticalVariable
. There are various kinds of applicable
Property
: a schema.org property, a property from other RDF-compatible systems, e.g. W3C RDF Data Cube, Data Commons, Wikidata, or schema.org extensions such as
GS1's
statType
StatisticalVariable
Indicates the kind of statistic represented by a
StatisticalVariable
, e.g. mean, count etc. The value of statType is a property, either from within Schema.org (e.g.
median
marginOfError
maxValue
minValue
) or from other compatible (e.g. RDF) systems such as DataCommons.org or Wikidata.org.
supersededBy
Class
or
Enumeration
or
Property
Relates a term (i.e. a property, class or enumeration) to one that supersedes it.
variableMeasured
Dataset
or
Observation
The variableMeasured property can indicate (repeated as necessary) the variables that are measured in some dataset, either described as text or as pairs of identifier and description using PropertyValue, or more explicitly as a
StatisticalVariable