Simply you are required to get done with a number of credit hours across your year of study
A Credit hour is a unit that gives weight to the value, level or time requirements of an academic course taken. The number of credit hours for each course is 2 or 3 credit hours so you are having almost like 60 courses during university.
Academic performance is measured by GPA. GPA is a number with a minimum of Zero and maximum of 4.0 where if you got straight As you will get a 4.00 and if you got straight Ds you will get 1.00 So apparently just passing a course is not enough as if your GPA got less than 2.00 you will be in trouble and you got get dismissed from university if you kept below 2.00 for more than 4 semesters! If you want to know more about GPA you can google “GPA Calculator” and you will be able to know.
If you are supposed to finish university in 5 years you will study 18 credit hours per semester, unless your GPA gets lower than 2.00 so you will study only 14 which means that more than semester below 2.00 will definitely mean that you are going to graduate later than your friends!
*Mainly credit hours system programme needs more attention and work throughout the year as 60% of the grading depends on course work (which is not that easy, course work is about quizzes and midterms not saying good morning to the professor every morning) Sometimes, majors in Credit hours system are different than departments in regular system , so before applying make sure that you know what you really want. Number of students in Credit hour system is less than regular system so this gives the students a better chance to focus and engage with their professors more. Credit hour system costs way more than regular system. I tried to list all what came in mind and I hope I could help you!