The golf swing video and motion-capture software works simply. The professional will capture your swing with both an iron and a wood on video. He can then use run the video through the advanced software and look at your swing on a step-by-step basis. The software will allow him to draw on the screen and underline what you are doing correctly and what needs improvement.
Without video motion analysis, you have to depend on just the pro's words and advice. For example, he may tell you that at the top of your swing, your clubhead is not in the right position to begin your approach into the ball. You may understand this point or you may not. With the video motion analysis, you will see why your clubhead is not in the right position, and you will have a better opportunity to correct the flaw since you can see it for yourself.
This is perhaps the best aspect of golf swing analysis software. You can learn exactly where you stand with your golf swing in moments. The golf pro can play back the swing immediately and show you what you did right and wrong. He may capture the incorrect hand placement that is resulting in your slice. He can show you and correct it on the spot.
Seeing your mistake is one thing, correcting it is something else. It still takes time and work on the practice range and on the course to become a good golfer. A teacher can take your swing, point out your flaws, offer corrective advice and give you a plan. You still have to do the work. It's not enough to know what you are doing wrong. You must put the time and effort in to correct it.