Login and Start Window
From TALSIM Docs
A login window, which you must use to log into the model, will then appear. Here, you will have to enter the user name, password and the client/customer. A successful login will be indicated by a TALSIM-NG message.
When opening Talsim-NG for the first time, an empty TALSIM interface is displayed. In the next step, the database of the corresponding client must be connected.