Even though it is an automation system (with software, interface designs, framework, meterials etc.) by its own, "Smart Home" settled in all languages just two words. Smart home is actually too complex to be summarized in two words, it is limited by your imagination.
If you look at all of the safety and comfort sensors you can made your own scenarios with the "if this then that" scope, you can program as you wish;
Do you know that if you have weight sensor, you can program the scenerio such as; IF the time is 23:00pm and if there is weight in my bed THEN shut down all the curtains / blinds, lights, sockets.