Cisco Content Services Switch (CSS11501) --> F5 concepts

I know CSS is ancient and long since EOL/EOS but unfortunately, I am tasked with migrating 2 production boxes to an F5 infrastructure.

Trying to figure out the equivalent concepts for groups, content and services. i.e. group=virtual server, content=iRule, services=POOL. Anyone know if this is correct?

I know they might not line up exactly but close enough is good too.