This Soryu submarine Combat System flow chart (and a vast amount of information) is in wispywood2344's website, passed on by S. More below.
Submarines are very complex especially the way their display terminals, mainframe capacity databases, sensors, weapons and people interact. All these elements make up the combat system.
This Australian Defence Force slide display (2015) of the Competitive Evaluation Process (CEP) has this longer definition of combat system (above).
The Australian Federal Government has invited both Raytheon and Lockheed Martin (facility in Adelaide) to participate in the process for selection as the integrator for the combat system for Australia’s future submarine.
All eyes have been on the three way (Japan, Germany and France) submarine (CEP) contest but what may make or break the future submarine project also includes how efficiently the combat system is integrated.
This invitation to integrate the combat system is restricted just to those two US companies because of the top secret nature of the US AN/BYG-1 combat system. The US AN/BYG-1 combat system (already in the Collins) is the only combat system considered and approved by the Australian Government for the future submarine.
This approval was made public in a Ministerial Media Release on 20 February 2015 "the Government has endorsed a set of key strategic requirements for our future submarines:
a) Range and endurance similar to the Collins Class submarine;
b) Sensor performance and stealth characteristics that are superior to the Collins Class submarine; and
c) The combat system and heavyweight torpedo jointly developed between the United States and Australia as the preferred combat system and main armament."
Integrating the US AN/BYG-1 combat system may entail up to a third of the cost and effort to build the future submarine. Adding to the complexity and cost of this integration is that a third US company, General Dynamics is deeply involved in modernising/developing the AN/BYG-1.
If Japan is chosen in the CEP the US companies and Australian companies will need to work with Japanese companies to replace the Japanese combat system (below) or adapt parts of the Japanese combat which are already the same or similar to parts of the AN/BYG-1 combat system.
The Japanese Soryu submarine Combat System flow chart (above) is from wispywood2344's website passed on by S. This chart is much larger here which also contains a Comprehensive Reference List. This Soryu flow chart can be conceptually compared with the more detailed component chart (below) for the current US AN/BYG-1 combat system: