# Matching two records

You can use the tMatchGroup component to detect duplicates and define how to merge similar records to create a master record.

Creating a master record is an iterative process: each new master record can be used to find new duplicates.

You can choose between two different algorithms to create master records:

* Simple VSR Matcher
* T-Swoosh

The main difference between the two algorithms is that T-Swoosh creates, for each master record, a new record that does not exist in the list of input records.

### In this section

* [Matching measures](https://help.qlik.com/talend/en-US/components/7.3/data-matching/matching-measures)
* [Match rules](https://help.qlik.com/talend/en-US/components/7.3/data-matching/match-rules)