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Indicates that the resource is compatible with the referenced accessibility API. Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessibilityAPI-vocabulary).
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Content features of the resource, such as accessible media, alternatives and supported enhancements for accessibility. Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessibilityFeature-vocabulary).
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The number of comments this CreativeWork (e.g. Article, Question or Answer) has received. This is most applicable to works published in Web sites with commenting system; additional comments may exist elsewhere.
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The specific time described by a creative work, for works (e.g. articles, video objects etc.) that emphasise a particular moment within an Event.
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The status of a creative work in terms of its stage in a lifecycle. Example terms include Incomplete, Draft, Published, Obsolete. Some organizations define a set of terms for the stages of their publication lifecycle.
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Date of first publication or broadcast. For example the date a [CreativeWork](https://schema.org/CreativeWork) was broadcast or a [Certification](https://schema.org/Certification) was issued.
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Indicates an IPTCDigitalSourceEnumeration code indicating the nature of the digital source(s) for some [CreativeWork](https://schema.org/CreativeWork).
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.
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An alignment to an established educational framework.
This property should not be used where the nature of the alignment can be described using a simple property, for example to express that a resource [teaches](https://schema.org/teaches) or [assesses](https://schema.org/assesses) a competency.
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A media object that encodes this CreativeWork. This property is a synonym for associatedMedia.
Media type typically expressed using a MIME format (see [IANA site](http://www.iana.org/assignments/media-types/media-types.xhtml) and [MDN reference](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types)), e.g. application/zip for a SoftwareApplication binary, audio/mpeg for .mp3 etc.
In cases where a [CreativeWork](https://schema.org/CreativeWork) has several media type representations, [encoding](https://schema.org/encoding) can be used to indicate each [MediaObject](https://schema.org/MediaObject) alongside particular [encodingFormat](https://schema.org/encodingFormat) information.
Unregistered or niche encoding and file formats can be indicated instead via the most appropriate URL, e.g. defining Web page or a Wikipedia/Wikidata entry.
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A creative work that this work is an example/instance/realization/derivation of.
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The number of interactions for the CreativeWork using the WebSite or SoftwareApplication. The most specific child type of InteractionCounter should be used.
The predominant mode of learning supported by the learning resource. Acceptable values are 'active', 'expositive', or 'mixed'.
Used to indicate a specific claim contained, implied, translated or refined from the content of a [MediaObject](https://schema.org/MediaObject) or other [CreativeWork](https://schema.org/CreativeWork). The interpreting party can be indicated using [claimInterpreter](https://schema.org/claimInterpreter).
A flag to signal that the item, event, or place is accessible for free.
A resource from which this work is derived or from which it is a modification or adaptation.
A resource that was used in the creation of this resource. This term can be repeated for multiple sources. For example, http://example.com/great-multiplication-intro.html.
Indicates whether this content is family friendly.
Indicates an item or CreativeWork that this item, or CreativeWork (in some sense), is part of.
Keywords or tags used to describe some item. Multiple textual entries in a keywords list are typically delimited by commas, or by repeating the property.
The predominant type or kind characterizing the learning resource. For example, 'presentation', 'handout'.
A license document that applies to this content, typically indicated by URL.
The location where the CreativeWork was created, which may not be the same as the location depicted in the CreativeWork.
Indicates the primary entity described in some page or other CreativeWork.
Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See [background notes](https://schema.org/docs/datamodel.html#mainEntityBackground) for details.
A maintainer of a [Dataset](https://schema.org/Dataset), software package ([SoftwareApplication](https://schema.org/SoftwareApplication)), or other [Project](https://schema.org/Project). A maintainer is a [Person](https://schema.org/Person) or [Organization](https://schema.org/Organization) that manages contributions to, and/or publication of, some (typically complex) artifact. It is common for distributions of software and data to be based on "upstream" sources. When [maintainer](https://schema.org/maintainer) is applied to a specific version of something e.g. a particular version or packaging of a [Dataset](https://schema.org/Dataset), it is always possible that the upstream source has a different maintainer. The [isBasedOn](https://schema.org/isBasedOn) property can be used to indicate such relationships between datasets to make the different maintenance roles clear. Similarly in the case of software, a package may have dedicated maintainers working on integration into software distributions such as Ubuntu, as well as upstream maintainers of the underlying work.
A material that something is made from, e.g. leather, wool, cotton, paper.
The quantity of the materials being described or an expression of the physical space they occupy.
Indicates that the CreativeWork contains a reference to, but is not necessarily about a concept.
The name of the item.
An offer to provide this item—for example, an offer to sell a product, rent the DVD of a movie, perform a service, or give away tickets to an event. Use [businessFunction](https://schema.org/businessFunction) to indicate the kind of transaction offered, i.e. sell, lease, etc. This property can also be used to describe a [Demand](https://schema.org/Demand). While this property is listed as expected on a number of common types, it can be used in others. In that case, using a second type, such as Product or a subtype of Product, can clarify the nature of the offer.
A person or organization who owns this Thing.
A pattern that something has, for example 'polka dot', 'striped', 'Canadian flag'. Values are typically expressed as text, although links to controlled value schemes are also supported.
The position of an item in a series or sequence of items.
Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
The person or organization who produced the work (e.g. music album, movie, TV/radio series etc.).
The service provider, service operator, or service performer; the goods producer. Another party (a seller) may offer those services or goods on behalf of the provider. A provider may also serve as the seller.
A publication event associated with the item.
The publisher of the article in question.
The publishing division which published the comic.
The publishingPrinciples property indicates (typically via [URL](https://schema.org/URL)) a document describing the editorial principles of an [Organization](https://schema.org/Organization) (or individual, e.g. a [Person](https://schema.org/Person) writing a blog) that relate to their activities as a publisher, e.g. ethics or diversity policies. When applied to a [CreativeWork](https://schema.org/CreativeWork) (e.g. [NewsArticle](https://schema.org/NewsArticle)) the principles are those of the party primarily responsible for the creation of the [CreativeWork](https://schema.org/CreativeWork).
While such policies are most typically expressed in natural language, sometimes related information (e.g. indicating a [funder](https://schema.org/funder)) can be expressed using schema.org terminology.
An organization that acknowledges the validity, value or utility of a credential. Note: recognition may include a process of quality assurance or accreditation.
The Event where the CreativeWork was recorded. The CreativeWork may capture all or part of the event.
The place and time the release was issued, expressed as a PublicationEvent.
A review of the item.
Review of the item.
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.
Indicates (by URL or string) a particular version of a schema used in some CreativeWork. This property was created primarily to indicate the use of a specific schema.org release, e.g. `10.0` as a simple string, or more explicitly via URL, `https://schema.org/docs/releases.html#v10.0`. There may be situations in which other schemas might usefully be referenced this way, e.g. `http://dublincore.org/specifications/dublin-core/dces/1999-07-02/` but this has not been carefully explored in the community.
Indicates the date on which the current structured data was generated / published. Typically used alongside [sdPublisher](https://schema.org/sdPublisher).
A license document that applies to this structured data, typically indicated by URL.
Indicates the party responsible for generating and publishing the current structured data markup, typically in cases where the structured data is derived automatically from existing published content but published on a different site. For example, student projects and open data initiatives often re-publish existing content with more explicitly structured metadata. The [sdPublisher](https://schema.org/sdPublisher) property helps make such practices more explicit.
A standardized size of a product or creative work, specified either through a simple textual string (for example 'XL', '32Wx34L'), a QuantitativeValue with a unitCode, or a comprehensive and structured [SizeSpecification](https://schema.org/SizeSpecification); in other cases, the [width](https://schema.org/width), [height](https://schema.org/height), [depth](https://schema.org/depth) and [weight](https://schema.org/weight) properties may be more applicable.
The Organization on whose behalf the creator was working.
The "spatial" property can be used in cases when more specific properties (e.g. [locationCreated](https://schema.org/locationCreated), [spatialCoverage](https://schema.org/spatialCoverage), [contentLocation](https://schema.org/contentLocation)) are not known to be appropriate.
The spatialCoverage of a CreativeWork indicates the place(s) which are the focus of the content. It is a subproperty of
contentLocation intended primarily for more technical and detailed materials. For example with a Dataset, it indicates
areas that the dataset describes: a dataset of New York weather would have spatialCoverage which was the place: the state of New York.
A person or organization that supports a thing through a pledge, promise, or financial contribution. E.g. a sponsor of a Medical Study or a corporate sponsor of an event.
A CreativeWork or Event about this Thing.
The item being described is intended to help a person learn the competency or learning outcome defined by the referenced term.
The "temporal" property can be used in cases where more specific properties (e.g. [temporalCoverage](https://schema.org/temporalCoverage), [dateCreated](https://schema.org/dateCreated), [dateModified](https://schema.org/dateModified), [datePublished](https://schema.org/datePublished)) are not known to be appropriate.
The temporalCoverage of a CreativeWork indicates the period that the content applies to, i.e. that it describes, either as a DateTime or as a textual string indicating a time period in [ISO 8601 time interval format](https://en.wikipedia.org/wiki/ISO_8601#Time_intervals). In the case of a Dataset it will typically indicate the relevant time period in a precise notation (e.g. for a 2011 census dataset, the year 2011 would be written "2011/2012"). Other forms of content, e.g. ScholarlyArticle, Book, TVSeries or TVEpisode, may indicate their temporalCoverage in broader terms - textually or via well-known URL. Written works such as books may sometimes have precise temporal coverage too, e.g. a work set in 1939 - 1945 can be indicated in ISO 8601 interval format format via "1939/1945".
Open-ended date ranges can be written with ".." in place of the end date. For example, "2015-11/.." indicates a range beginning in November 2015 and with no specified final date. This is tentative and might be updated in future when ISO 8601 is officially updated.
The textual content of this CreativeWork.
Thumbnail image for an image or video.
A thumbnail image relevant to the Thing.
Approximate or typical time it usually takes to work with or through the content of this work for the typical or target audience.
The work that this work has been translated from. E.g. 物种起源 is a translationOf “On the Origin of Species”.
Organization or person who adapts a creative work to different languages, regional differences and technical requirements of a target market, or that translates during some event.
The typical expected age range, e.g. '7-9', '11-'.
URL of the item.
The schema.org [usageInfo](https://schema.org/usageInfo) property indicates further information about a [CreativeWork](https://schema.org/CreativeWork). This property is applicable both to works that are freely available and to those that require payment or other transactions. It can reference additional information, e.g. community expectations on preferred linking and citation conventions, as well as purchasing details. For something that can be commercially licensed, usageInfo can provide detailed, resource-specific information about licensing options.
This property can be used alongside the license property which indicates license(s) applicable to some piece of content. The usageInfo property can provide information about other licensing options, e.g. acquiring commercial usage rights for an image that is also available under non-commercial creative commons licenses.
The duration of validity of a permit or similar thing.
The geographic area where the item is valid. Applies for example to a [Permit](https://schema.org/Permit), a [Certification](https://schema.org/Certification), or an [EducationalOccupationalCredential](https://schema.org/EducationalOccupationalCredential).
The version of the CreativeWork embodied by a specified resource.
An embedded video object.
The number of words in the text of the CreativeWork such as an Article, Book, etc.
Example/instance/realization/derivation of the concept of this creative work. E.g. the paperback edition, first edition, or e-book.
A work that is a translation of the content of this work. E.g. 西遊記 has an English workTranslation “Journey to the West”, a German workTranslation “Monkeys Pilgerfahrt” and a Vietnamese translation Tây du ký bình khảo.
