# Defining a matching key with the T-Swoosh algorithm

Available in...

* Big Data Platform
* Cloud API Services Platform
* Cloud Big Data Platform
* Cloud Data Fabric
* Cloud Data Management Platform
* Data Fabric
* Data Management Platform
* Data Services Platform
* MDM Platform
* Real-Time Big Data Platform

## Procedure

Make sure first to select the columns on which to apply the match algorithm either from the Data section by using the Select Matching Key tab, or directly from the Matching Key table.

### In this section

* [Creating a match key](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2024-05/creating-match-key?id=720)