The major is for the diploma, and there will be another minor in the diploma. Minors don't have extra diplomas, which is different from double degrees.

A double degree is to complete all credits and give two academic certificates. Minor is some basic courses for this major, generally about 18 credits. You will know a little about this major after you finish it, which is generally used to assist the major.

For example, if you major in accounting, many people will choose to minor in mathematics; Major in architecture and minor in architectural history; Major in mechanical engineering and minor in aviation engineering.

Minor is not compulsory, you can choose not to choose, and you will graduate after completing your major. If you have a minor, you may have to study for half a year.