PropertyValueSpecification - schema.org

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# PropertyValueSpecification

#### Thing > Intangible > PropertyValueSpecification

A Property value specification.
Usage: Fewer than 10 domains

Property | Expected Type | Description
--- | --- | ---
[more...]

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- 'PropertyValueSpecification' is mentioned in layer: core

Properties from PropertyValueSpecification
`defaultValue` | Text or Thing | The default value of the input. For properties that expect a literal, the default is a literal value, for properties that expect an object, it's an ID reference to one of the current values.
`maxValue` | Number | The upper value of some characteristic or property.
`minValue` | Number | The lower value of some characteristic or property.
`multipleValues` | Boolean | Whether multiple values are allowed for the property. Default is false.
`readonlyValue` | Boolean | Whether or not a property is mutable. Default is false. Specifying this for a property that also has a value makes it act similar to a "hidden" input in an HTML form.
`stepValue` | Number | The stepValue attribute indicates the granularity that is expected (and required) of the value in a PropertyValueSpecification.
`valueMaxLength` | Number | Specifies the allowed range for number of characters in a literal value.
`valueMinLength` | Number | Specifies the minimum allowed range for number of characters in a literal value.
`valueName` | Text | Indicates the name of the PropertyValueSpecification to be used in URL templates and form encoding in a manner analogous to HTML's input@name.
`valuePattern` | Text | Specifies a regular expression for testing literal values according to the HTML spec.
`valueRequired` | Boolean | Whether the property must be filled in to complete the action. Default is false.
Properties from Thing
`additionalType` | 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. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally.
`alternateName` | Text | An alias for the item.
`description` | Text | 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.
`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.
`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, Freebase page, or official website.
`url` | URL | URL of the item.

#### Acknowledgement

The schema.org Actions mechanism benefited from extensive discussions across the Web standards community around W3C, in particular from the Hydra project's community group.

Schema Version 3.0