Brainstorming was initiated by Alex Osborne of BBDO advertising company in the United States. This method is mainly carried out by the staff of the value engineering working group in a normal and harmonious atmosphere, without any restrictions, breaking the routine, thinking positively, speaking freely, fully expressing their views, and discussing and discussing in the form of meetings.

Brainstorming comes from the word "brainstorming". The so-called Brain-storming was originally used in psychopathology, which refers to the mental disorder of mental patients. Now it has turned to unrestricted free association and discussion, with the aim of generating new ideas or stimulating innovative ideas.