Example: A Decision Table

Logic for a monitored light switch with sensors for natural light and the state of the light bulb's filament

Decision table for a light switch

y	n	-	-	daylight.isBright()
y	n	y	-	switch.isOn()
y	n	n	-	bulb.isLit()
-	x	-	-	switch.setOn(true);
x	-	-	-	switch.setOn(false);
-	-	x	-	bulb.alarm();