Is it easy to use? If you've used CAD software before, you know it is not known for its ease of use. This may sound obvious, but try to use a popular CAD package. The more popular the software, the more user forums, tutorials and videos you will be able to find to help you master the software.
Afikoman (Hebrew: ×Ö²×¤Ö´××§×Ö¹×Ö¸×â, based on Greek epikomon [á¼Ïá½¶ Îºá¿¶Î¼Î¿Î½] or epikomion [á¼ÏÎ¹ÎºÏÎ¼Î¹Î¿Î½], meaning that which comes after or dessert)[1] is a half-piece of matzo which is broken in two during the early stages of the Passover Seder and set aside to be eaten as a dessert after the meal.
OPRK stands for Opponent Ranking. OPRK is used to determine projections for future weeks vs. the opponents the player is playing. If Adrian Peterson (considered to be the best RB in fantasy football) was playing the 31st ranked rushing defense he would have a favorable opponent ranking. PVO stands for Position vs. Opponent. This is used to determine how your player is going to do against a defense. The 49ers and Seattle defense defends the run very well so that running back/position would have a negative PVO.