should SAP NetWeaver 7.4 and NetWeaver Gateway 7.4 not install or set separately always ???

Hi ,

NetWeaver Gateway are integrated into SAP NetWeaver 7.4, so don’t need to install them or set them up separately.

Is it so always???

In Case if both are separate then for where we should create service in SEGW inside NWgateway7.4 or NW7.4.