# Match Rules

Availability-note[Deprecated](https://help.talend.com/r/en-US/Cloud/labels-on-talend-help-center/availability-deprecated)

This content is deprecated.

Available in...

* Data Fabric
* MDM Platform
* Qlik Cloud Enterprise Edition
* Qlik Talend Cloud Enterprise Edition
* Qlik Talend Cloud Premium Edition

In MDM, match rules are used to decide whether two or more data records match, and how to handle them if they do.

The following sections describe how to create and define a Match Rule. Match Rules are used to define how MDM decides whether two or more data records match, and how to handle them if they do.

### In this section

* [Creating a Match Rule](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-12/creating-a-match-rule)
* [Defining a Match Rule](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-12/defining-a-match-rule)
* [Attaching a Match Rule to a Data Model](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-12/attaching-match-rule-to-data-model?id=826)
* [Simulating the matching of staging data records](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-12/simulating-matching-of-staging-data-records)
* [An example of defining a match rule with match keys mapped to simple type elements from multiple entities](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-12/example-of-defining-match-rule-with-match-keys-mapped-to-simple-type-elements-from-multiple-entities)