Different hardware requirements based on different state assignments on Page No. 9-12

 First assignment for A,B,C,D,E are 000,001,010,011,100

 z = q2 + q3

 D1 = xq1 + xq3

 D2 = x'q1'q2' + xq1'q3'

 D3 = x'q2q3 + x'q1 + zq1'q3'

 First assignment for A,B,C,D,E are 000,001,011,111,110

 Second Assignment 

 z = q3

 D1 = x

 D2 = x + q2' 

 D3 = x'q1 + x'q2' + {q2'q3' or q1'q3' } + xq1'q2

 Since the second assignment results in reduced output expression this partition is called as output-consistent partition