Alarms or Locks. Which are better?

There are wide ranging discussions, in many and varied publications, forums and magazines, discussing the attributes of alarm systems and locking systems.

Many opinions exist and all opinions are certainly accepted on face value. However, I was recently involved in a lengthy discussion about which is considered the more secure option.

In my opinion both alarms and locks complement each other, however physical protection can only be seen to occur with a physical product.

Locks provide a mechanical physical component to securing an entrance. Alarms do not!

Alarms perform the task for which they are so named. They "alarm" people that a condition has occurred or is occurring.

In summation, my determination is that only locks and locking systems are designed to physically secure an entrance and alarms are simply a means to inform if an entrance is compromised.

So, when asked "Which is better?", the suitable reply should be "Locks are better".