# BA design tools

The following table describes the BA design tools and their uses:

| Design Tool                  | What It Does                                                                                                                                                            |
| ---------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Pentaho Aggregation Designer | Optimizes the multidimensional Mondrian data model.                                                                                                                     |
| Pentaho Metadata Editor      | Creates relational data models and refines the models created with the Data Access Wizard.                                                                              |
| Pentaho Report Designer      | Interactive Reports is a web-based design interface which is used to create both simple and on-demand operational reports without depending on IT or report developers. |
| Pentaho Schema Workbench     | Creates multidimensional Mondrian data models and refines the models created with the Data Access Wizard.                                                               |

As a Pentaho administrator, you will need to know how to start and stop the BA design tools. Your IT administrator [specifies the data connections for these tools](https://docs.pentaho.com/install/9.3-install/pentaho-configuration/tasks-to-be-performed-by-an-it-administrator/configure-the-pentaho-server/specify-data-connections-for-ba-design-tools).