The fourth round of discipline evaluation was launched in April 2016, and was carried out in the way of "combining objective evaluation with subjective evaluation" in accordance with the principle of "voluntary application and free participation". The evaluation system has made many innovations on the basis of the first three rounds; The evaluation data is obtained in the way of "combining public data with unit filling"; The evaluation results are presented in a "grading" manner. The specific method is to publish the top 70% of disciplines in nine grades according to the ranking percentile of "overall level score of disciplines": the top 2% (or top 2) is A+, 2%~5% is A (excluding 2%, the same below), 5%~10% is A -, 10%~20% is B+, 20%~30% is B, 30%~40% is B -, 40%~50% is C+, 50%~60% is C, and 60%~70% is C.
