[rules-users] Guvnor -- Business Rules and RuleFlow groups

Hi all, I'm wondering how business rules in the Guvnor are meant to interface with rule-flow groups. If I use a specific flow, where in the cycle will business rules be located? Should I specify the ruleflow-group in Guvnor's business rules editor? Some insight on how these ideas should interoperate would be really appreciated. :) best wishes, Andrew