Research Article

Hierarchizing the Product Characteristics of Industrial Plain Sewing Machine for Making Best Purchase Decision

Table 7

Hierarchy matrix with relative weight (eigenvector).

ā€‰Table lampDurabilityLess costLess noiseMaximum speedWarranty periodAutomatic and constant lubrication systemFlexibility of pressure foot leverThread tension regulatorSeparate servo motornth root valueEigenvector

Table lamp1.000.330.200.330.201.000.110.200.200.110.270.02
Durability3.001.005.001.000.333.000.200.140.200.200.660.05
Less cost5.000.201.001.000.111.000.200.140.200.140.390.03
Less noise3.001.001.001.000.253.000.330.200.330.140.610.04
Maximum speed5.003.009.004.001.007.001.000.330.200.201.480.10
Warranty period1.000.331.000.330.141.000.140.110.140.110.290.02
Autonomous and constant lubrication system5.005.005.003.001.007.001.001.001.000.331.970.14
Flexibility of pressure foot lever5.007.007.005.003.009.001.001.001.001.002.830.20
Thread tension regulator5.005.005.003.005.007.001.001.001.001.002.580.18
Separate servo motor9.005.007.007.005.007.003.001.001.001.003.440.24
Column sum42.0027.8641.2025.6616.0346.007.985.125.274.2314.52ā€‰