# Chart

This schema defines the Chart entity. Charts are built using tables or SQL queries by analyzing the data. Charts can be part of Dashboard.

**$id: **[**https://open-metadata.org/schema/entity/data/chart.json**](https://open-metadata.org/schema/entity/data/chart.json)

Type: `object`

## Properties

* **id** `required`
  * Unique identifier that identifies a chart instance.
  * $ref: [../../type/basic.json#/definitions/uuid](../types/basic.md#uuid)
* **name** `required`
  * Name that identifies this Chart.
  * Type: `string`
  * Length: between 1 and 64
* **displayName**
  * Display Name that identifies this Chart. It could be title or label from the source services.
  * Type: `string`
* **fullyQualifiedName**
  * A unique name that identifies a dashboard in the format 'ServiceName.ChartName'.
  * Type: `string`
  * Length: between 1 and 64
* **description**
  * Description of the dashboard, what it is, and how to use it.
  * Type: `string`
* **version**
  * Metadata version of the entity.
  * $ref: [../../type/basic.json#/definitions/entityVersion](../types/basic.md#entityversion)
* **updatedAt**
  * Last update time corresponding to the new version of the entity.
  * $ref: [../../type/basic.json#/definitions/dateTime](../types/basic.md#datetime)
* **updatedBy**
  * User who made the update.
  * Type: `string`
* **chartType**
  * $ref: [#/definitions/chartType](chart.md#charttype)
* **chartUrl**
  * Chart URL, pointing to its own Service URL.
  * Type: `string`
  * String format must be a "uri"
* **href**
  * Link to the resource corresponding to this entity.
  * $ref: [../../type/basic.json#/definitions/href](../types/basic.md#href)
* **owner**
  * Owner of this dashboard.
  * $ref: [../../type/entityReference.json](../types/entityreference.md)
* **tables**
  * Link to table used in this chart.
  * $ref: [../../type/entityReference.json#/definitions/entityReferenceList](../types/entityreference.md#entityreferencelist)
* **followers**
  * Followers of this chart.
  * $ref: [../../type/entityReference.json#/definitions/entityReferenceList](../types/entityreference.md#entityreferencelist)
* **tags**
  * Tags for this chart.
  * Type: `array`
    * **Items**
    * $ref: [../../type/tagLabel.json](../types/taglabel.md)
* **service** `required`
  * Link to service where this dashboard is hosted in.
  * $ref: [../../type/entityReference.json](../types/entityreference.md)
* **usageSummary**
  * Latest usage information for this database.
  * $ref: [../../type/usageDetails.json](../types/usagedetails.md)

## Type definitions in this schema

### chartType

* This schema defines the type used for describing different types of charts.
* Type: `string`
* The value is restricted to the following:
  1. _"Line"_
  2. _"Table"_
  3. _"Bar"_
  4. _"Area"_
  5. _"Pie"_
  6. _"Histogram"_
  7. _"Scatter"_
  8. _"Text"_
  9. _"BoxPlot"_
  10. _"Other"_

_This document was updated on: Monday, October 18, 2021_