This report describes user requirements to an Internet based distance learning system of human factors training, i.e. the SafetyNet prototype, within the aviation (pilots and air traffic control), maritime and medical domains. User requirements totraining have been elicited through 19 semi-structured interviews (60 minutes each). The informants (interviewees) were mainly end users, i.e. instructors and trainees. They expressed general agreement on "major course contents" and some doubts concerning"methods of knowledge delivery" and the "learning environment".