2. Improvement begins with finding problems, especially the supervisor's problem consciousness.
The problem is the gap with the goal or standard.
It can be analyzed from the triangle of past, present and future.
It can also be analyzed from the angle of man-machine material method ring.
3. Refer to an article http://nccur.lib.nccu.edu.tw/bitstream/140.19/33165/4/53006204.pdf.