LINE

  1. The shortest and most direct distance between two points or terminals. 
  2. a fixed pattern of terminals who originate and receive, or receive and relay orders and information in an organization.  A line can be vertical such as a command line where authority and power of position increases the higher up one goes or a line can be horizontal where each terminal on the line shares similar status.
  3. Series of interrelated products such as a line of cosmetics which employ one scent and are marketed under one brand name.

EXAMPLE:

Put the unfinished product on the line and it will go through terminals until it is a finished product.