What's the difference between the MAO (Maximum Acceptable Outage) and RTO (Recovery Time Objective)? Let's say the MAO is 8 hours, shouldn't be the recovery time 8 hours as well? Isn't it the same thing?
Answer: MAO and RTO are similar things, but not the same. MAO is maximum outage for a particular activity, whereas RTO is targeted time for recovery, and is usually shorter then MAO.
It works like this: first you define MAOs for all your activities, then see if there are any interdependencies, and once you realize that e.g. activity A depends on activity B, you will need to decrease the activity B's RTO to the time that will fit the MAO of the activity A.