Optimization of a multi-response problem in Taguchi's dynamic system

Kun Lin Hsieh*, Lee-Ing Tong, Hung Pin Chiu, Hsin Ya Yeh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


Taguchi method was known as an off-line quality control methodology to be used in many industries. Until now, most applications only focus on optimizing a single-response in a static system. Furthermore, due to the increasing complexity of the product design, more than one quality characteristic must be considered simultaneously to improve the production quality. Therefore, there are several studies to address the multi-response problem. In order to satisfy the requirements of the production's design, optimization of a dynamic system been mentioned by Taguchi has received more attentions in the recent years. Hence, optimizing a multi-response problem in a dynamic system becomes an important issue to address the quality improvement. This study proposes a procedure utilizing the statistic regression analysis and desirability function to optimize the multi-response problem with Taguchi's dynamic system consideration. Firstly, the regression analysis is employed to screen out the control factors significantly affecting the quality variation, and the adjustment factors significantly affecting the sensitivity of a Taguchi's dynamic system. Then, the desirability function will be applied to optimize such a multi-response problem. Finally, the effectiveness of the proposed procedure will be demonstrated by an example of a biological reduction of ethyl acetoacetate process experiment project at the Union Chemical Laboratories of the Industrial Technology Research Institute in Taiwan.

Original languageEnglish
Pages (from-to)556-571
Number of pages16
JournalComputers and Industrial Engineering
Issue number4
StatePublished - 1 Dec 2005


  • Desirability function
  • Dynamic system
  • Multi-response problem
  • Parameter design
  • Regression analysis
  • Taguchi method

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