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The results of data collection were analyzed by excel software, which are presented
in figure 7.
After analyzing the problem and determining the keywords, it is necessary to
translate these problems to design parameters. To perform this translation, the
quality function deployment was employed.
Figure 7 Results of data collection
2.4 Quality Function Deployment (QFD)
Quality Function Deployment is an exhaustive method for translating customer
requirements to engineering characteristics or design parameters. This process is
applied to extract design parameters by focusing on quality of product (ReVelle,
1998). In