# Managing data-detected data classes

The data-detected classes are divided into several categories:

* The Enumeration type compares your data against a list of possible values.
* The Pattern type compares your data against possible data patterns referenced in the data class.
* The Regular expression type compares your data against a predefined regular expression.

### In this section

* [Creating a data-detected class](https://help.qlik.com/talend/en-US/data-catalog-administration-guide/8.0/creating-data-detected-data-class)
* [Configuring a data-detected class](https://help.qlik.com/talend/en-US/data-catalog-administration-guide/8.0/configuring-data-detected-data-class)
* [Enabling the auto learning on data patterns](https://help.qlik.com/talend/en-US/data-catalog-administration-guide/8.0/enabling-auto-learning-data-pattern)