HIRTZ J, STONE R B. A functional basis for engineering design: reconciling and evolving previous efforts[J]. Research in Engineering Design, 2002, 13(2):65-82.
[2]
LOUGH K G, STONE R B. Function based risk assessment: mapping function to likelihood[C]//Proceedings of ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference.New York, N.Y., USA: American Society of Mechanical Engineers, 2005:455-467.
