“…The FIS is a popular computing framework based on the concepts of fuzzy set theory, fuzzy if-then rules and fuzzy reasoning (Seyedhoseini et al, 2010). The theory has been widely applied for various fields such as AI, control engineering, expert systems, etc (Lee & Park, 1997;Mujumdar & Sasikumar, 2002;Tanaka & Sugeno, 1992;Toshiro, 1994, Mamdani, 1977Jamshidi et al, 1997). FIS is named also fuzzy rule based system, fuzzy expert system, fuzzy model, fuzzy associative memory, fuzzy logic controller and simply fuzzy system.…”