摘要：To apply the subtle sets in the value engineering is necessary to specify the main elements of a value engineering problem. The concept of value engineering modeling must be adapted to the methods from the utility theory and the vague sets theory. Considering the actual trend in modeling,we propose to also use the subtle sets,which have the advantage of being operated in a uniformly concept with the determinist,fuzzy and random magnitude. Also,regarding the high analogies between biology and technique (seen through bionics),we’ll use in some cases,terms and examples from the mentioned scientific area.
关键词：value engineering;subtle sets;fuzzy and random magnitude
