Abstract
In order to evaluate a seam of running stitches numerically, a measurement system having the following functions was developed. The length of a seam, the angle of the seam and the length from the start and end point of the seam to regression line were measured and calculated by the digitizer and the micro-computer. It was made clear from these three measures for running stithces that obtaining not only the mean but the variance were necessary to evaluate the seam.