A.A類(lèi)問(wèn)題項(xiàng)目數(shù)量少,一般是一、二項(xiàng),至多只能有三項(xiàng),但發(fā)生的次數(shù)多,約占投訴總數(shù)的70%
B.B類(lèi)問(wèn)題項(xiàng)目數(shù)量一般,發(fā)生次數(shù)也相對(duì)少一點(diǎn),約占投訴總數(shù)的20%一25%
C.C類(lèi)問(wèn)題項(xiàng)目數(shù)量多,但發(fā)生次數(shù)少,約占投訴總數(shù)的10%左右
D.先致力解決A類(lèi)問(wèn)題,可使飯店質(zhì)量有明顯進(jìn)步
E.相對(duì)于A、C兩類(lèi)問(wèn)題,B類(lèi)問(wèn)題往往帶有偶然性或不可控性