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they usually do not REQUIRE that level of access. What
happens during the lunch hour? Does anyone NEED the system
then, or is it not required? Is the system more critical at certain
times of the day than others? At month end more than mid-
month? If the system that usually provides the data is not
available, then can the critical data still be accessed in some
other manner? Working with the business to discover their
availability requirements is crucial to determining the level of
availability we must aim for. Once we know the level of
accessibility we desire, the target, we can build a plan to reach
that target. But before we can write a plan or strategy to achieve
a specific goal, we must know where we currently are. It is fine
to know you want to enter a particular address on a map, but the
secret to reaching that location is to understand where you
currently are! (It does no good to plan a strategy to get you from
Boston to New York if you are currently in Baltimore!). Now
back to our yardstick.