Automation is the use of electronics and computer-controlled devices to assume control of processes. The aim of automation is to boost efficiency and reliability. In most cases, however, automation replaces labor.
Automation today exists in all functions within industry including integration, installation, maintenance, and even marketing and sales.
Automation covers applications ranging from a household thermostat controlling a boiler, to a large industrial control system with ten thousand input measurements and output control signals. In control complexity, it can range from simple on-off control to multi-variable high-level algorithms.
Home automation is building automation for a home, called a smart home or smart house. 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. When connected with the Internet, home devices are an important constituent of the Internet of Things.