Survival shows are a reality TV Program created by entertainment agencies (i.e.JYP, YG) and TV channels (MNET, SBS) where trainees compete for spots to debut their careers or get into a temporary group. It is known that the goal of survival is to allow fans to know trainees more and hype them up before debut and attract more fans.
Many also include voting by fans to determine the final line up. However, some shows are accused of being exploitative to the artist, doing evil editing (ie being overly dramatic) or even rigging the result of the votes to spike up viewership.
Example: Produce by MNET, SIXTEEN by JYP, YG TREASURE BOX