A note on using intuitionistic fuzzy sets for fault-tree analysis on printed circuit board assembly

The aim of this note is to point out and correct some errors in the definition of the four arithmetic operations for triangle intuitionistic fuzzy numbers introduced by Shu et al. [Shu MH, Cheng CH, Chang JR. Using intuitionistic fuzzy sets for fault-tree analysis on printed circuit board assembly. Microelectron Reliab 2006;46:2139-48]. (C) 2008 Elsevier Ltd. All rights reserved.