“…Since, the experts for diagnosis may not available everywhere, many diagnostic expert systems have been developed in the past (Airu, 1999;Boyd and Sun, 1994;Caristi et al, 1987;Cirio et al, 1998;Donahue et al, 1991;Ghosh and Samanta, 2003;Kramers et al, 1998;Latin and Rettinger, 1987;Lopez-Morales et al, 2008;Mahaman et al, 2003;Mansingh et al, 2007;Michalski et al, 1983;Sanchez et al, 1993;Wang et al, 2005;Yialouris and Sideridis, 1996;Yialouris et al, 1997;Zandonadi et al, 2005;Zhang et al, 1993).…”