© 2026 Schemall· The source of structured meaning
schema.org
The subject matter of an object.
An abstract is a short description that summarizes a [CreativeWork](https://schema.org/CreativeWork).
Description is not available yet.
A human-readable summary of specific accessibility features or deficiencies, consistent with the other accessibility metadata but expressing subtleties such as "short descriptions are present but long descriptions will be needed for non-visual users" or "short descriptions are present and no long descriptions are needed".
The human sensory perceptual system or cognitive faculty through which a person may process or perceive the intellectual content of a resource, not including any adaptations of the content (e.g., text alternatives for images). Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessMode-vocabulary).
Indicates a page documenting how licenses can be purchased or otherwise acquired, for the current item.
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](https://schema.org/docs/styleguide.html).
The overall rating, based on a collection of reviews or ratings, of the item.
A secondary title of the CreativeWork.
Indicates a page or other link involved in archival of a [CreativeWork](https://schema.org/CreativeWork). In the case of [MediaReview](https://schema.org/MediaReview), the items in a [MediaReviewItem](https://schema.org/MediaReviewItem) may often become inaccessible, but be archived by archival, journalistic, activist, or law enforcement organizations. In such cases, the referenced page may not directly publish the content.
The item being described is intended to assess the competency or learning outcome defined by the referenced term.
An embedded audio object.
Awards won by or for this item.
The caption for this object. For downloadable machine formats (closed caption, subtitles etc.) use MediaObject and indicate the [encodingFormat](https://schema.org/encodingFormat).
A citation or reference to another creative work, such as another publication, web page, scholarly article, etc.
Conditions that affect the availability of, or method(s) of access to, an item. Typically used for real world items such as an [ArchiveComponent](https://schema.org/ArchiveComponent) held by an [ArchiveOrganization](https://schema.org/ArchiveOrganization). This property is not suitable for use as a general Web access control mechanism. It is expressed only in natural language. For example "Available by appointment from the Reading Room" or "Accessible only from logged-in accounts ".
The location depicted or described in the content. For example, the location in a photograph or painting.
Official rating of a piece of content—for example, 'MPAA PG-13'.
Text of a notice appropriate for describing the copyright aspects of this Creative Work, ideally indicating the owner of the copyright for the Work.
The year during which the claimed copyright for the CreativeWork was first asserted.
Indicates a correction to a [CreativeWork](https://schema.org/CreativeWork), either via a [CorrectionComment](https://schema.org/CorrectionComment), textually or in another document.
The country of origin of something, including products as well as creative works such as movie and TV content. In the case of TV and movie, this would be the country of the principle offices of the production company or individual responsible for the movie. For other kinds of [CreativeWork](https://schema.org/CreativeWork) it is difficult to provide fully general guidance, and properties such as [contentLocation](https://schema.org/contentLocation) and [locationCreated](https://schema.org/locationCreated) may be more applicable. In the case of products, the country of origin of the product. The exact interpretation of this may vary by context and product type, and cannot be fully enumerated here.
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.
Text that can be used to credit person(s) and/or organization(s) associated with a published Creative Work.
A description of the item.
Indicates an IPTCDigitalSourceEnumeration code indicating the nature of the digital source(s) for some [CreativeWork](https://schema.org/CreativeWork).
The location at which an item can be viewed or experienced in-person.
An [EIDR](https://eidr.org/) (Entertainment Identifier Registry) [identifier](https://schema.org/identifier) representing a specific edit / edition for a work of film or television. For example, the motion picture known as "Ghostbusters" whose [titleEIDR](https://schema.org/titleEIDR) is "10.5240/7EC7-228A-510A-053E-CBB8-J" has several edits, e.g. "10.5240/1F2A-E1C5-680A-14C6-E76B-I" and "10.5240/8A35-3BEE-6497-5D12-9E4F-3". Since schema.org types like [Movie](https://schema.org/Movie) and [TVEpisode](https://schema.org/TVEpisode) can be used for both works and their multiple expressions, it is possible to use [titleEIDR](https://schema.org/titleEIDR) alone (for a general description), or alongside [editEIDR](https://schema.org/editEIDR) for a more edit-specific description.
The level in terms of progression through an educational or training context. Examples of educational levels include 'beginner', 'intermediate' or 'advanced', and formal sets of level indicators.
Represents textual captioning from a [MediaObject](https://schema.org/MediaObject), e.g. text of a 'meme'.
The endTime of something. For a reserved event or service (e.g. FoodEstablishmentReservation), the time that it is expected to end. For actions that span a period of time, when the action was performed. E.g. John wrote a book from January to *December*. For media, including audio and video, it's the time offset of the end of a clip within a larger file. Note that Event uses startDate/endDate instead of startTime/endTime, even when describing dates with times. This situation may be clarified in future revisions.
Date the content expires and is no longer useful or available. For example a [VideoObject](https://schema.org/VideoObject) or [NewsArticle](https://schema.org/NewsArticle) whose availability or relevance is time-limited, a [ClaimReview](https://schema.org/ClaimReview) fact check whose publisher wants to indicate that it may no longer be relevant (or helpful to highlight) after some date, or a [Certification](https://schema.org/Certification) the validity has expired.
A person or organization that supports (sponsors) something through some kind of financial contribution.
A [Grant](https://schema.org/Grant) that directly or indirectly provide funding or sponsorship for this item. See also [ownershipFundingInfo](https://schema.org/ownershipFundingInfo).
The identifier property represents any kind of identifier for any kind of [Thing](https://schema.org/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](https://schema.org/docs/datamodel.html#identifierBg) for more details.
An image of the item. This can be a [URL](https://schema.org/URL) or a fully described [ImageObject](https://schema.org/ImageObject).
The ISO 3166-1 (ISO 3166-1 alpha-2) or ISO 3166-2 code, the place, or the GeoShape for the geo-political region(s) for which the offer or delivery charge specification is not valid, e.g. a region where the transaction is not allowed. See also [eligibleRegion](https://schema.org/eligibleRegion).
The number of interactions for the CreativeWork using the WebSite or SoftwareApplication. The most specific child type of InteractionCounter should be used.
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 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.
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.
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.
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.
The quantity of the materials being described or an expression of the physical space they occupy.
The name of the item.
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.
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.
Indicates if use of the media require a subscription (either paid or free). Allowed values are `true` or `false` (note that an earlier version had 'yes', 'no').
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.
The [SHA-2](https://en.wikipedia.org/wiki/SHA-2) SHA256 hash of the content of the item. For example, a zero-length input has value 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'.
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.
The startTime of something. For a reserved event or service (e.g. FoodEstablishmentReservation), the time that it is expected to start. For actions that span a period of time, when the action was performed. E.g. John wrote a book from *January* to December. For media, including audio and video, it's the time offset of the start of a clip within a larger file. Note that Event uses startDate/endDate instead of startTime/endTime, even when describing dates with times. This situation may be clarified in future revisions.
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 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.
