# Folder structure

URL: https://irs.systems/en/docs/ltt/documentation/ltt-gui-manual/gettingstarted/folder-structure

After installation you will find a certain folder structure below your root installation folder.

![Folder Structure](/docs/assets/ltt/assets/folders.png)

| Folder               | Content                                                                              |
| -------------------- | ------------------------------------------------------------------------------------ |
| 10_LTT_Results       | Location of the history files ([more info](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/altf10historydata)). |
| 20_LTT_Data_Logs     | Location of various measurement data files.                                          |
| 30_LTT_Comm_Logs     | Location of various DUT communication logs (currently not used).                     |
| 40_LTT_Sys_Logs      | System log files.                                                                    |
| 50_LTT_SW            | The LTT GUI software + TestStand root + Configuration files.                         |
| 55_LTT_MDBS          | The measurement database system ([more info](/en/docs/ltt/documentation/ltt-gui-manual/mdbs)).                    |
| 60_LTT_Action_Logs   | See chapter about Action Logs.                                                       |
| 66_LTT_Tools         | Some tools.                                                                          |
| 77_LTT_Documentation | The LTT documentation.                                                               |

The **50_LTT_SW** folder content is like below:

| Folder          | Content                                                                                                        |
| --------------- | -------------------------------------------------------------------------------------------------------------- |
| LTT Config      | Location of all LTT configuration files ([more info](/en/docs/ltt/documentation/ltt-gui-manual/configuration)).                            |
| LTT GUI         | Location of the LTT GUI & LTT MesVis executables.                                                              |
| LTT Limit Files | Location of all LTT limit configuration files ([more info](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/f5limitconfiguration)). |
| LTT TS          | The TestStand root directory ([more info](/en/docs/ltt/documentation/ltt-gui-manual/teststand)).                                            |