Drafting the Dress Jacket

How to draft the jacket pattern 1) using the dress foundation to waistline only, trace front and back as indicated, having the shoulder touching at neckline and spreading shoulder edges 1” at armhole. slash waist dart between a and b; then close up front dart as shown in diagram 2. 2) lower neckline 1/2” at center front, add 3/4" to center front for closing overlap; add 3/4" for blousing allowance in front and back. place sleeve foundation with cap overlapping front armhole 1/2” at shoulder, having each side of lower part of cap at . . .