摘要: An article by R. Kangari and L.S. Riggs (see ibid., vol.36, no.2, p.126-31, 1989), which dealt with the use of fuzzy sets in construction risk analysis, contains a number errors inconsistencies, most appear examples given to clarify concepts involved computations related sets. The inconsistencies are identified, computational results clarified providing correct for enough ensure an understanding processes involved. >