Research Article

An Improved Effective Cost Review Process for Value Engineering

Table 12

Specification review process for handset cases.

Idea generationSpecification review
 Step  1 Step  2             Step  3
CategoryIdea stimulus questionSpecificationRegulationWhoWhy and howCost-cutting idea

MaterialCan the material be replaced with the same material of a lower grade? ABS V0UL/TUVDesign(i) To block a fire in the phone line   
(ii) Check the material’s melting temperature
〈Material, Same material of a lower grade replacement, Headset case_ABS V0 (to ABS HB)〉  
Ans1: flammable  
Ans2: apply heat resistance painting
Can the material be replaced with a different material at a lower cost?ABS V0UL/TUVDesign(i) To block a fire in the phone line,  
(ii) Check the material’s melting temperature
〈Material, Different material at a lower cost replacement, Headset case_ABS V0 (to HIPS)〉
Ans1: flammable 
Ans2: apply heat resistance painting

DimensionCan the thickness be reduced?2.5 t/2.8 tIt is not broken by 5 Ns impactDesign(i) To meet regulations 
(ii) Conduct an impact test
〈Dimension, Thickness reduction, Headset case_0.25 t〉 
Ans1: fractures before 5 Ns impact if it does not absorb impact 
Ans2: do not apply the idea

Printing/coloringCan a color be replaced with a natural color or another existing color?Special colorAestheticsManufacturing(i) To meet regulations 
(ii) Conduct a preference test
〈Printing/Coloring, Coloring replacement, Headset case_Special color (to standard color)〉 
Ans1: customers dislike colors that they recognize as standard 
Ans2: do not apply the idea