Abstract: Various embodiments include computer-aided systems and methods for training a user in conducting negotiations. An example method includes: providing data of a first type using recordings of real or virtual negotiations of one or more users with of one or more recording devices after corresponding computer-aided processing; and communicating the data of a first type to an artificial intelligence for generating data of a second and a third type. Data of a second and a third type are presented on an output device, which give the user a conception of the AI-calculated reaction and/or consequence of the user's recorded negotiation, subsequently and also in real time, during the ongoing negotiation.