This package defines the classes required to support the unit concept. This package is relative to the SMM Application. In particular, it defines the classes that encapsulate the sensor and actuator units for the SMM application. These two classes exist in two versions, one is used for system level testing in the embedded environment (i.e. they implement the physical interface to the SMM sensor and actuator) and one is used for the system level testing in the desktop environment (i.e. they implement the interface to simulated sensor and actuator).

Note that the analog and actuator components implementing the physical interface to the sensor and actuator import and use components provided with the JBed run-time environment. These components cannot be used without these support components.