‹#›
U.S.
Department of Transportation
Progress - Step Three – Define the
System and Establish a Testing Environment
October 2011
Core System Architecture is Completed
User
Needs
System
Requirements
&
Architecture
Aug/Sep 2010
Oct (draft)
Jan (RevA)
Apr (RevB/C)
May (workshop)
June 2011
(Workshop)
Sep (2nd Workshop)
Concept
of Operations