Value orientation: by cutting the flow horizontally and then layered and orthogonal, reuse the flow and cut the flow vertically, quantify the output value of products / technologies / algorithms / designs, and improve the work efficiency of all parties.

The background UED of AB experiment hopes to understand the principle of AB experiment through the construction process connected to the background, so as to better intervene in the algorithm and do UI expression test, mainly to verify the commercial value of the design.