INPUT is a European H2020 project (02/2016-02/2020) that focuses on advancing upper limb prosthetics by tackling the most significant aspects of successfully fitting such a device to a user: Improved socket for more comfortable fit and wearing; Improved training to maximize the outcome with the patient; Improved recognition algorithms for better and more robust control; Improved evaluations to make sure that the devices are tested in clinically relevant scenarios. We will achieve this by increasing our theoretical knowledge on the control generating mechanisms, by ample end user testing (2 of the 4 project years are dedicated to user testing) and by implementing the project as an Innovation Action, meaning an increased focus on high market readiness.