1, 5: refers to five vertical systems, namely, decision-making command system, quality generation system, resource construction system, support service system and supervision and control system.

2, 5: refers to five levels, namely: schools, majors, courses, teachers and students.

3, 8: refers to "figure 8 quality improvement spiral".

4, 2: refers to the dual engine, that is, the cultural engine, including the socialist core values; Senior talent view, talent view and education view; Modern concept of quality. Mechanism engine, including self-motivation mechanism, assessment incentive mechanism and linkage mechanism.

5. 1: refers to a data platform, that is, a school-based data collection and analysis platform.

Diagnosis and reform of internal quality assurance system in higher vocational colleges

Under the background of the rapid development of higher vocational education, the internal quality assurance system in higher vocational colleges is an important foundation to improve the quality of personnel training, enhance the attraction of higher vocational education and promote the development of modern vocational education. The diagnosis and improvement of internal quality assurance system aims to improve the internal quality assurance system in higher vocational colleges and guide them to strengthen the construction of internal quality assurance system and its operating mechanism.

Improving the teaching quality in higher vocational colleges. To effectively promote the diagnosis and improvement of internal quality assurance system, we should not only accurately understand the conceptual characteristics and essential requirements of diagnosis and improvement, but also systematically understand the main significance and basic contents of diagnosis and improvement.