# Selecting source tables and managing metadata

This section describes how to select source tables and manage metadata. The source tables are the tables that were replicated to the Landing Zone by the Replicate task (i.e. the target tables of the Replicate task).

In this section:

* [Reserved column names](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Model/reserved-names.htm)
* [Selecting and adding the source tables](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Model/generate_model.htm)
* [Validating the metadata and storage](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Model/validate_model.htm)
* [Managing the metadata](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Model/manage_model.htm)
* [Schema evolution](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Storage%20Zone/schema_evolution.htm)
* [Creating transformations](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Model/create_expressions.htm)
* [Reusable transformations](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DL/Model/define_reusable_transformations.htm)