T 16 Edition 1.0 (21/12/2000)This document describes a system approach method to analyse training needs and create training packages. It describes a training design method based on objectives and suitable for highly cognitive activities and specifically the Air Traffic Control (ATC) training simulators. A survey identifying the training area to be improved and the available technologies conclude with sixteen recommendations developments. The final part includes a common policy for the Computer-based Training (CBT) production. The concepts have been developed in the context of Air Traffic Controller (ATCO) training but are widely adaptable to other populations.