Smarthomes evolution as illustrated above allows common furniture to now become intelligent and provide analytics and patterns on daily activities (ie. sleep or food).  Automation includes the interoperability of potentially several different protocols (ie. Zigbee, Zwave,WiFi,X.10) via a controller to allow an enhanced end user experience.  NAC is specialized in the creation of this automation with one key additional ingrediant.  That being Security. We continually stress the importance of security in all forms.  Perimeter security (ie. Camera and House Alarm) is no longer an efficient solution. Thieves are able to hack into baby monitors  and other devices to gain access inside your home.  NAC solutions monitors at an application level, all applications that are being used and any anomaly that occurs on a device or application is alerted on.