prospective research

I found that no system-level methodology currently exists that can quantify the amount of security provided by a particular system-level research. Most of security methods have been qualitative. We may find a way that can quantitatively rate the security for cps, and give them a score just like what the security software does to our windows system. It is therefore useful to categorize measures of system behavior. There are some previous works related with "reward models" using the amount of reward accumulated during a specified interval of time, or a "reward rate" at a specified instant of time in steady state.