Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Horizontal movement represents production, vertical movement represents interaction. (A) Each worker W works on a range 1/n of tasks, passing work n − 1 times. (B) Worker W and customer C engage in frequent interactions. (C) Each worker W needs physical access to a key resource R.
