# The classical matching approach

The classical approach consists of sorting data into similar sized partitions which have the same attribute, choosing metrics and defining matching rules.

### In this section

* [Blocking by partitions](https://help.qlik.com/talend/en-US/data-matching/8.0/blocking-by-partitions)
* [Choosing metrics and defining matching rules](https://help.qlik.com/talend/en-US/data-matching/8.0/choosing-metrics-and-defining-matching-rules)