The traditional class diagnose based on attend the lecture on the spot;however,classroom teaching may become to a show because of experts' attend.It causes diagnose lose its function.To solve this problem,a distant diagnostic system based on FMS is designed and constructed to realize distant diagnose on the basis of authentic class.I hope this research can help to promote the function of class diagnose,and improve the teacher's teaching level.Diagnose information associate with the video synchronously,recor...