# Thing

The most generic type of item.

## Properties

| Property | Expected Type | Description |
|----------|---------------|-------------|
| [additionalType](https://schema.org.ai/additionalType) | [Text](https://schema.org.ai/Text), [URL](https://schema.org.ai/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](https://schema.org/docs/styleguide.html). |
| [alternateName](https://schema.org.ai/alternateName) | [Text](https://schema.org.ai/Text) | An alias for the item. |
| [description](https://schema.org.ai/description) | [Text](https://schema.org.ai/Text), [TextObject](https://schema.org.ai/TextObject) | A description of the item. |
| [digital](https://schema.org.ai/digital) | [Number](https://schema.org.ai/Number) | Digital maturity score from 0.0 (fully analog/manual) to 1.0 (fully digital/autonomous). Indicates the degree to which an entity operates digitally. |
| [disambiguatingDescription](https://schema.org.ai/disambiguatingDescription) | [Text](https://schema.org.ai/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](https://schema.org.ai/identifier) | [PropertyValue](https://schema.org.ai/PropertyValue), [Text](https://schema.org.ai/Text), [URL](https://schema.org.ai/URL) | The identifier property represents any kind of identifier for any kind of [Thing](https://schema.org.ai/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. |
| [image](https://schema.org.ai/image) | [ImageObject](https://schema.org.ai/ImageObject), [URL](https://schema.org.ai/URL) | An image of the item. This can be a [URL](https://schema.org.ai/URL) or a fully described [ImageObject](https://schema.org.ai/ImageObject). |
| [mainEntityOfPage](https://schema.org.ai/mainEntityOfPage) | [CreativeWork](https://schema.org.ai/CreativeWork), [URL](https://schema.org.ai/URL) | 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. |
| [name](https://schema.org.ai/name) | [Text](https://schema.org.ai/Text) | The name of the item. |
| [owner](https://schema.org.ai/owner) | [Organization](https://schema.org.ai/Organization), [Person](https://schema.org.ai/Person) | A person or organization who owns this Thing. |
| [potentialAction](https://schema.org.ai/potentialAction) | [Action](https://schema.org.ai/Action) | Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role. |
| [sameAs](https://schema.org.ai/sameAs) | [URL](https://schema.org.ai/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](https://schema.org.ai/subjectOf) | [CreativeWork](https://schema.org.ai/CreativeWork), [Event](https://schema.org.ai/Event) | A CreativeWork or Event about this Thing. |
| [url](https://schema.org.ai/url) | [URL](https://schema.org.ai/URL) | URL of the item. |

## Subtypes

| Type | Description |
|------|-------------|
| [Action](https://schema.org.ai/Action) | An action performed by a direct agent and indirect participants upon a direct object. Optionally happens at a location with the help of an inanimate instrument. The execution of the action may produce a result. Specific action sub-type documentation specifies the exact expectation of each argument/role. See also [blog post](https://blog.schema.org/2014/04/16/announcing-schema-org-actions/) and [Actions overview document](https://schema.org/docs/actions.html). |
| [Agent](https://schema.org.ai/Agent) | An autonomous AI agent that can perform actions, use tools, and make decisions to accomplish goals. |
| [BioChemEntity](https://schema.org.ai/BioChemEntity) | Any biological, chemical, or biochemical thing. For example: a protein; a gene; a chemical; a synthetic chemical. |
| [CreativeWork](https://schema.org.ai/CreativeWork) | The most generic kind of creative work, including books, movies, photographs, software programs, etc. |
| [DigitalProperty](https://schema.org.ai/DigitalProperty) | A digital property — a website, app, API, deployed agent, or any addressable entity with a stable digital presence. The unifying type for things that have URLs and are accessible in the digital realm. |
| [Event](https://schema.org.ai/Event) | An event happening at a certain time and location, such as a concert, lecture, or festival. Ticketing information may be added via the [offers](https://schema.org.ai/offers) property. Repeated events may be structured as separate Event objects. |
| [Intangible](https://schema.org.ai/Intangible) | A utility class that serves as the umbrella for a number of 'intangible' things such as quantities, structured values, etc. |
| [MedicalEntity](https://schema.org.ai/MedicalEntity) | The most generic type of entity related to health and the practice of medicine. |
| [Model](https://schema.org.ai/Model) | An AI/ML model that powers an Agent or provides inference capabilities. |
| [Organization](https://schema.org.ai/Organization) | An organization such as a school, NGO, corporation, club, etc. |
| [Person](https://schema.org.ai/Person) | A person (alive, dead, undead, or fictional). |
| [Place](https://schema.org.ai/Place) | Entities that have a somewhat fixed, physical extension. |
| [Problem](https://schema.org.ai/Problem) | A canonical Problem — pain exposed by a sufficiently-pinned Ideal Customer Profile. Addressable so multiple candidate Solutions can be enumerated. Distinct from schema:Issue (which is a content issue) — a Problem is a market problem. |
| [Product](https://schema.org.ai/Product) | Any offered product or service. For example: a pair of shoes; a concert ticket; the rental of a car; a haircut; or an episode of a TV show streamed online. |
| [Taxon](https://schema.org.ai/Taxon) | A set of organisms asserted to represent a natural cohesive biological unit. |
| [Tool](https://schema.org.ai/Tool) | A tool that can be used by an Agent to perform actions. Tools expose capabilities through defined interfaces. |
| [Worker](https://schema.org.ai/Worker) | The base work-executor type over the agent/human duality: Worker { type: 'agent' \| 'human' } with status, capabilities, and current task. Agents and humans are Workers; the interface is uniform (notify/ask/approve/decide/do). |

---

Quoted from Schema.org 30.1, https://schema.org/Thing, under CC BY-SA 3.0. Served by the Org.AI Foundation at https://schema.org.ai/Thing.