In the traditional sense, universities train talents with scientific research ability, and the essential elements of scientific research are the ability to retrieve, learn existing materials and write their own achievements, so the ability to retrieve documents and write papers is necessary.

Nowadays, with the popularization of university education, the research expenditure of college students is weakened and the social work expenditure is enhanced. There are also many things to learn and write at work, so these two abilities are equally indispensable.

On the other hand, foreign universities use graduation thesis as a threshold to ensure the quality of graduates, and so does China.