As specified above, the modules in the system are developed
separately and tested individually for their functionalities. Once
that is completed, the various modules are integrated into a
complete system in the Integration phase and a system
connectivity test is done to check that all modules/units are
well-connected and the system as a whole behaves in
accordance with the design specifications. Once the system
connectivity has been validated, the System design can proceed
to the next phase. Figure 5 describes the functions of each
module after the Integration phase.