上降充通大粤 1.Introduction SHANGHAI JIAO TONG UNIVERSITY Engineering is a profession,similar to law, medicine,dentistry,and pharmacy: ·Highly educated Specialized expertise Engineers: ·Hired by clients（and employers) Have ethical obligation to the clients,because Clients generally know less about the subject than the engineer Clients often cannot assess the quality of the engineer's technical advice1.Introduction Engineering is a profession, similar to law, medicine, dentistry, and pharmacy: • Highly educated • Specialized expertise Engineers: • Hired by clients ( and employers) • Have ethical obligation to the clients, because • Clients generally know less about the subject than the engineer • Clients often cannot assess the quality of the engineer’s technical advice