Skip to main content

Table 1 The house of quality of a motor car

From: Determination of Target Values of Engineering Characteristics in QFD Using Uncertain Programming

   + + +
  Engineering characteristics EC1 EC2 EC3 EC4 EC5
   x 1 x 2 x 3 x 4 x 5
  EC1 x 6 (α 1/6) x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9)
  EC2 x 1/9 (α 9) x 6 (α 1/6) x 2 (α 1/2) x 1/9 (α 9) x 1/9 (α 9)
Uncertain correlation matrix EC3 x 1/9 (α 9) x 2 (α 1/2) x 6 (α 1/6) x 4 (α 1/4) x 1/9 (α 9)
  EC4 x 1/9 (α 9) x 1/9 (α 9) x 4 (α 1/4) x 6 (α 1/6) x 1/9 (α 9)
  EC5 x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9) x 6 (α 1/6)
Customer Uncertain weighs of Uncertain relationship matrix between customer requirements and engineering characteristics
requirements customer requirements      
CR1 \(\mathcal {Y}_{1}\) x 4 (α 1/4) x 6 (α 1/6) x 1/9 (α 9) x 2 (α 1/2) x 1/9 (α 9) x 1/9 (α 9)
CR2 \(\mathcal {Y}_{2}\) x 2 (α 1/2) x 1/9 (α 9) x 4 (α 1/4) x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9)
CR3 \(\mathcal {Y}_{3}\) x 2 (α 1/2) x 1/9 (α 9) x 1/9 (α 9) x 6 (α 1/6) x 1/9 (α 9) x 1/9 (α 9)
CR4 \(\mathcal {Y}_{4}\) x 6 (α 1/6) x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9) x 6 (α 1/6) x 1/9 (α 9)
CR5 \(\mathcal {Y}_{5}\) x 1/4 (α 4) x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9) x 1/9 (α 9) x 4 (α 1/4)
  Units dB Horsepower Gallon Kg M3
  Comp1 80 75 0.042 23 0.18
  Comp2 65 70 0.034 24 0.20
  Comp3 65 80 0.028 23 0.18
Technical measures Comp4 75 60 0.032 15 0.14
  Comp5 95 80 0.030 20 0.19
  Min 60 60 0.027 15 0.14
  Max 95 90 0.042 25 0.21
  Cost coefficients \(\mathcal {L}(8,12)\) \(\mathcal {L}(9,12)\) \(\mathcal {L}(24,26)\) \(\mathcal {L}(14,16)\) \(\mathcal {L}(7,10)\)