Software Engineering

13.4.1 
Establish the structural design configuration
The structural design configuration should be placed under technical configuration 
control to prevent the introduction of inadvertent changes. Every element of the 
structural configuration should be uniquely identified per approved software con-
figuration control procedures. From this point forward, only change requests or pro-
posals that have been approved by the software change control board (CCB) should 
be integrated into the structural configuration.