title: What is the difference between "system/subsystem" and "software" in a SSS vs SRS?
body: <p>What is the difference between a System/Subsystem Specification (SSS) and a Software Requirements Specification (SRS)? I am struggling to find a precise definition between System/Subsystem and Software. I know that the SRS is more detailed than the SSS in that it includes mentions of interface of how it interacts with other software and hardware. However,I still can't make the connection of how the SRS relates back to the SSS. </p>
  
  <p>Any advice would be much appreciated. Thanks!</p>