Limits are conditions (events that already happened in the past) such as the light switch is already on, or off when the Activation should occur. On the other hand Disable function is driven by an event such as the light switch turns on, or off. In order for the Activation to occur while disabled, a "re-enable" event must occur, which is defined in the app, and can be a different event than the one that disabled the Activation. An Activation can use both limit and disable means.