The sister sitting at the computer is literally embroidering the vestments, only not with a needle but with a computer mouse. For this she had to master not only modern computer embroidering technology but also be, first and foremost, a skillful embroiderer who knows all the various applications of manual embroidering. She has to embroider every stitch, fix various directions of the threads in different fragments, know various embroidery methods, thicknesses, and so on. Often in order to achieve the right color effect, the stitches are made in several layers, just as in iconography paints are applied in layers. Furthermore the sister who creates the program should assign the needle number, color, and thread brand for every fragment. She also assigns the sequence in which the fragments will be sewn—for example, the embroidery machine sews several elements, and then stops sewing; they change the threads, the needles, the settings, readjust the frames; then the machine sews the next fragment; again the threads are changed, and so on.