Receiver void void Receiver::Command (int commandId) Command int commandId Executable a command on the server Receiver class. Can be used to receive and execute commands. After execution of a command, the receiver will send an acknowledgement Receiver,Sender; Receiver<-Sender [label="Command()", URL="\ref Command()"]; Receiver->Sender [label="Ack()", URL="\ref Sender::Ack()", ID="1"]; Receiver Command