In addition, a number of objectives for the OWS were considered essential to man's abilities in space: Evaluation of man's capability to inhabit and exploit large space structures Development of supporting technology for the AAP and advanced space vehicles Evaluation of man's ability to accomplish complex tasks in space Evaluation of biomedical and systems aspects of extended duration missions. Deactivation of the Workshop so that it could be revisited and reactivated on subsequent missions. Most importantly, the OWS would advance space science and technology and thus "sustain the tempo of the national space program, and aid in assuring U.S. primacy in space."