Tham khảo tài liệu 'business process improvement_15', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | . How to Interpret Optimal Curve ENGINEERING STATISTICS HANDBOOK hW tools raids search BACK Nixf 5. Process Improvement . Advanced topics . An EDA approach to experimental design . DEX contour plot . How to Interpret Optimal Curve Corresponds to ideal optimum value The optimal curve is the curve on the contour plot that corresponds to the ideal optimum value. Defective springs example For the defective springs data we search for the Y 100 contour curve. As determined in the steepest ascent descent section the Y 90 curve is immediately outside the point. The next curve to the right is the Y 95 curve and the next curve beyond that is the Y 100 curve. This is the optimal response curve. NIST SEMATECH HOME TOOLS St AIDS SEARCH BACK NEXT http div898 handbook pri section5 5 1 2006 10 31 45 AM . How to Interpret Optimal Setting 5. Process Improvement . Advanced topics . An EDA approach to experimental design . DEX contour plot . How to Interpret Optimal Setting Optimal setting The near-point optimality setting is the intersection of the steepest-ascent line with the optimal setting curve. Theoretically any X1 X3 setting along the optimal curve would generate the desired response of Y 100. In practice however this is true only if our estimated contour surface is identical to nature s response surface. In reality the plotted contour curves are truth estimates based on the available and noisy n 8 data values. We are confident of the contour curves in the vicinity of the data points the four corner points on the chart but as we move away from the corner points our confidence in the contour curves decreases. Thus the point on the Y 100 optimal response curve that is most likely to be valid is the one that is closest to a corner point. Our objective then is to locate that near-point . Defective springs example In terms of the defective springs contour plot we draw a line from .
