Ergonomic work-place design for disabled persons contains the selection of work-places appropriate for disabled, work-place design and work instruction and training. In order to support industry and administration in their activities of designing work-places for disabled workers a taxonomy of technical aids is presented taking into account the information most essential for practitioners. This classification is in accordance with the postulate of the ISO emphasizing the necessity for a classification of aids containing technical work aids as a main group. Therefore the classification system proposed should be considered as a frame work for a general taxonomy of technical aids at all.