The concept of Home Automation aims to bring the control of operating your every day home electrical appliances to the tip of your finger, thus giving user affordable lighting solutions, better energy conservation with optimum use of energy.
Apart from just lighting solutions, the concept also further extends to have a overall control over your home security as well as build a centralised home entertainment system and much more.
Home Automation system aims to control all the devices of your smart home through internet protocols.
A home automation system will control lighting, climate, entertainment systems, and appliances. It may also include home security such as access control and alarm systems.

Smart Home

A home automation system typically connects controlled devices to a central hub or "gateway".
The user interface for control of the system uses either wall-mounted terminals, tablet or desktop computers, a mobile phone application, or a Web interface, that may also be accessible off-site through the Internet.