Dameijia software is not free, and its company needs funds to operate. The main functions of the academic situation App under Dameijia Education Technology include performance inquiry, academic evaluation and subject diagnosis. Because Dameijia software is not free, its company needs funds to operate, so it needs to pay when using functions such as performance check. Damei's teaching diagnosis &; Related derivative products such as quality monitoring platform, personalized question bank management system, learning situation App, and homework library management system are big data intelligent teaching management and resource co-construction and sharing platform systems launched by Dameijia Education for the process evaluation needs of school daily examinations and homework.