Project Smart Home implements 'smart home''. The house has sensors which are connected to a central server and send events in case of lights on/off doors open/close. The system receives events of type SensorEvent.
SmartHome - the home itself, contains rooms
Room - room, contains doors and lights
Door - door (interroom or entrance),
Light - source of light (lighbulb and etc)
SensorEvent - represents physical world event
SenserEventType - type of event, now there are 4 types
SensorCommand - command which allows to programmatically manage the physical world (turn on/off lights, open/close doorlocks)
CommandType - type of command, now only 1 type (turn ligths off)