The consortium formed for the EXAMINER II research project set itself the goal to conceive and submit to prototype testing a handling system which is capable of orienting itself in a not completely known environment by means of data from a number of different sensors. Interest was focused on automatic updating and, if appropriate, extension of the environment model based on sensor data, in particular stereoscopic images. For the overall system a limited planning capability on the basis of task and target descriptions was desired, in order to permit autonomous coping with unexpected situations. For reasons of the desired flexibility of action of the system, special attention was to be placed upon knowledge based approaches. As presented in t...