# 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/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` * **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) * **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) _This document was updated on: Monday, October 18, 2021_