There are many software architectural designs such as Data flow, independent components, call-return, Data centered, virtual machine, etc. For each of the following systems, recommend an appropriate design and describe any assumption and why you think that's the appropriate architectural design for the system. 1) System 1: A file-sharing system that allows users located at different locations to share information with other users and retrieve information from other users. 2) System 2: A safety-critical system that provides surgeons assistance during surgery, such as providing accurate information on the functions of a patient's vital organs. 3) System 3: Train Ticket vending machine software system