SFDC?

Hi, I see everybody talk about SFDC or SFC, I know that is the same meaning but I dont know what is it.

In the routing Group, I see I can choose SFC or STD but I dont know when we use SFC? Typically, I want to control all of activity on route, that include amount of WIP, work center. Maybe I choose SFC, I dont know that’s wrong or right. Can you answer my questions

Thanks and Regard