Qualitek-4軟體輔助避免掉複雜的實驗設計過程，快速的幫助您尋找出最佳實驗條件組合與分析，並可比較改善前後的差異性，提供使用者實質預測數據作為決策的依據。

Software for Taguchi Design of Experiments 
"Qualitek-4 from Nutek, Inc. automatically designs experiments based on user-indicated factors and levels. The program selects the array and assigns the factors to the appropriate column. For more complex experiments, there is a manual design option. The program also performs the three basic steps in analysis: main effect, analysis-of-variance, and optimum studies. Analysis can be performed using standard or signal-to-noise ratios of results for smaller, bigger, nominal, or dynamic characteristics