Differenece between connect and design server ACC components

Hi,

I believe Connect server is superset of Design Server,whereas the components of connect server has 14 components and design server has 12 components.

Connect server components are suffixedwith _s and design server with _m

example : zoo_s in connect server

                  zoo_m in design server

Could u please tell me what is the diffrenece between _s and _m in ACC components

Appreciate ur help on this.

Thanks,

Zeeshan Zuheb