Title:
Home Thermostat

Description:
Model a BPMN collaboration representing wireless sensor network for a smart home heating system.
The system is composed by a user interacting with the thermostat, a controller, 3 temperature sensors and the boiler.
The collaboration can start once the user switch on the thermostat and set the desired temperature.
Then, the thermostat delegates the controller the manage the boiler; and waits for the current ambient temperature.
The controller activates the sensors which starts to communicate non-stop the sensed temperature.
These values are used by the controller to calculate the average and decide if turn on the boiler.
The boiler itself decide if fire the burner depending on the maximum water temperature.

Versions:
HomeThermostat.bpmn - Correct version