Georgie Smithwick, founder of coursehub.ie, says one of the flaws in the points system is that it can encourage students to pick the wrong course.
The business and French student at Trinity College said: "One of the flaws in the current selection process is that those who achieve high points feel obliged to do a course that is difficult to get into. Otherwise they think they are wasting points.
"Those who get a maximum of 600 points, law or medicine, because they are the hardest subjects to get into. They might be more suited to science or history."
She set up coursehub.ie as a guide to third-level courses after switching from one course to another.