# Metrics This schema defines the Metrics entity. Metrics are measurements computed from data such as `Monthly Active Users`. Some of the metrics that measures used to determine performance against an objective are called KPIs or Key Performance Indicators, such as `User Retention`. **$id:**[**https://open-metadata.org/schema/entity/data/metrics.json**](https://open-metadata.org/schema/entity/data/metrics.json) Type: `object` ## Properties - **id** `required` - Unique identifier that identifies this metrics instance. - $ref: [../../type/basic.json#/definitions/uuid](../types/basic.md#uuid) - **name** `required` - Name that identifies this metrics instance uniquely. - Type: `string` - Length: between 1 and 64 - **fullyQualifiedName** - A unique name that identifies a metric in the format 'ServiceName.MetricName'. - Type: `string` - Length: between 1 and 64 - **displayName** - Display Name that identifies this metric. - Type: `string` - **description** - Description of metrics instance, what it is, and how to use it. - Type: `string` - **version** - Metadata version of the entity. - $ref: [../../type/entityHistory.json#/definitions/entityVersion](../types/entityhistory.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` - **href** - Link to the resource corresponding to this entity. - $ref: [../../type/basic.json#/definitions/href](../types/basic.md#href) - **owner** - Owner of this metrics. - $ref: [../../type/entityReference.json](../types/entityreference.md) - **tags** - Tags for this chart. - Type: `array` - **Items** - $ref: [../../type/tagLabel.json](../types/taglabel.md) - **service** `required` - Link to service where this metrics is hosted in. - $ref: [../../type/entityReference.json](../types/entityreference.md) - **usageSummary** - Latest usage information for this database. - $ref: [../../type/usageDetails.json](../types/usagedetails.md) - **changeDescription** - Change that lead to this version of the entity. - $ref: [../../type/entityHistory.json#/definitions/changeDescription](../types/entityhistory.md#changedescription) _This document was updated on: Monday, November 15, 2021_