Selection for Quality

User Model

f(S,C,T)
Expert assessments:

S1=.8 S2=.9 S3=8

BEST=
low cost

rapid response
reliable delivery
trustworthiness

C3= 10±1

T3=50±80

C1= 5±1

T1=100±160

C2= 8±1

T2=70±30

S= source

reliability

C= confidence

T= delay time

Estimates from suppliers:

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