In the American business context the communication within and during a process is very important. In fact, the forward movement of a process is dependent on communication. Parties involved in the process must remove roadblocks, anticipate slow-downs. The process may not come to a halt.
Constant communication is the prerequisite for quick response time. Constant communication also secures a common understanding of the process’ goals. It motivates. Feedback within the process is given on a regular basis.
Not to be underestimated is also the value of communicating interim results upwards, to those on the next level of management who exert influence on the process in general, and who might also be the recipient of its ultimate results.