Observation
A Schema.org TypeThis term is proposed for full integration into Schema.org, pending implementation feedback and adoption from applications and websites.
- Canonical URL: https://schema.org/Observation
- Check for open issues.
Instances of the class Observation are used to specify observations about an entity (which may or may not be an instance of a StatisticalPopulation), at a particular time. The principal properties of an Observation are observedNode, measuredProperty, measuredValue (or median, etc.) and observationDate (measuredProperty properties can, but need not always, be W3C RDF Data Cube "measure properties", as in the lifeExpectancy example).
See also StatisticalPopulation, and the data and datasets overview for more details.
| Property | Expected Type | Description |
|---|---|---|
| Properties from Observation | ||
marginOfError |
QuantitativeValue | A marginOfError for an Observation. |
measuredProperty |
Property | The measuredProperty of an Observation, either a schema.org property, a property from other RDF-compatible systems, e.g. W3C RDF Data Cube, or schema.org extensions such as GS1's. |
measuredValue |
DataType | The measuredValue of an Observation. |
observationDate |
DateTime | The observationDate of an Observation. |
observedNode |
StatisticalPopulation | The observedNode of an Observation, often a StatisticalPopulation. |
| 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. |
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. |
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. |
Instances of
Observation may appear as a value for the following properties
| Property | On Types | Description |
|---|---|---|
| diseaseSpreadStatistics | SpecialAnnouncement | Statistical information about the spread of a disease, either as WebContent, or described directly as a Dataset, or the specific Observations in the dataset. When a WebContent URL is provided, the page indicated might also contain more such markup. |
Source
https://github.com/schemaorg/schemaorg/issues/2291