Author is at Dept. Mechanical Eng., Royal Military College of Canada, Kingston, Ontario, Canada (1985) l7p MS.  "Traditional ways of performing the engineering design tasks, and their drawbacks, are outlined. The findings of a Theory of Technical Ssytems are summarized, and forms of structures used to describe these systems and their related processes are discussed. The needs of engi- neering design (and of the designer) are related to this theory