We have entered the era of big data, although it is said that many people still do not understand big data, but we are still exposed to a lot of statistical concepts in our normal life. From the census that we encounter every ten years, to some of the attendance in our daily lives, this all involves the concept of statistics. Nowadays, many universities not only count the origin of new students, but also the destination of graduates. So why do universities need to count where students graduate from? Let's take a look, there are the following three purposes.

The first purpose is to investigate the reasonableness of the school's majors and curriculum and the employment rate. Nowadays, the pressure of employment in society is particularly severe, many college graduates can not immediately find a job, but in a state of inactivity. The reason for this state of affairs, on the one hand, because society is changing rapidly, some majors are no longer suitable for social requirements, on the other hand, of course, the students themselves have problems. University graduation statistics will help us to understand the employment rate of various majors, and through the evaluation of the employment rate, we can see whether there are irrationalities in the curriculum of majors and courses, and whether they are still accepted by the needs of the society. Graduation destination and employment rate is also a kind of reference value for the school to carry out the specialization and curriculum.

The second purpose of the statistics is to help students plan their careers. Increased social competition requires students to plan ahead. It is important to plan early for employment after college. Career planning is an extremely important study, need to synthesize the student's interest, professional and employment situation to consider. The school's statistics on the destinations of past graduates can provide a reference for current students. From this, we can understand which field has a higher demand, which specialty and what kind of skills are needed, and on this basis, students can strengthen their knowledge and skills development, and if necessary, training assistance, and early preparation.

The third purpose of such statistics is to help build the school's resource network. Today's society is an interpersonal society, whether it is for education or employment, are inseparable from interpersonal communication and interpersonal network. When the school is counting the graduates, it is building a huge alumni network. This network not only provides convenience for the school, but also provides convenience and mutual benefits for the alumni in the network.