tokens: The CSDDD shall contain the detailed design of the communication system , with all critical detailed design decision justifications , including : 1 . the requirements applicable to each of the major components of the communication system identified in the CSADD , 2 . the detailed design of each major component of the communication system , 3 . a justification of all design decisions relating to the detailed design of each component , and 4 . a complete description of all of the interfaces to each component .