“…Normally, knowledge could be extracted through identification, conceptualization, filtration, and induction from various sources including experts, journal papers, reports, textbooks, and related databases. Knowledge acquisition is a difficult and time-consuming process and is commonly recognized as a bottleneck in the development of an expert system (Hayes-Roth, 1995). Consequently, effective methods of knowledge acquisition are critical in building an expert system (Huang et al, 2005).…”