# Folder Structure

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

![Folder Structure](https://1704635928-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FH5etzy4TvPRLxLRNfHlb%2Fuploads%2Fgit-blob-9f39c228c3d7a5cd9a820b4211d3ba85a15e5a98%2FFolders.png?alt=media)

| Folder                 | Content                                                                                                                                  |
| ---------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| 10\_LTT\_Results       | Location of the history files ([more info](https://docs.irs.systems/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](https://docs.irs.systems/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](https://github.com/irs-systems/IRS-LTT/blob/GitBook/doc/30%20User%20Documentation/documentation/ltt-gui-manual/Configuration/README.md)). |
| LTT GUI         | Location of the LTT GUI & LTT MesVis executables.                                                                                                                                              |
| LTT Limit Files | Location of all LTT limit configuration files ([more info](https://docs.irs.systems/ltt/documentation/ltt-gui-manual/lttgui/dialogs/f5limitconfiguration)).                                    |
| LTT TS          | The TestStand root directory ([more info](https://docs.irs.systems/ltt/documentation/ltt-gui-manual/teststand)).                                                                               |