The BIA will identify how quickly critical departments or processes need to be restored after a disaster.
Running the BIA involves collecting information from each of your organization’s department managers.
Smaller groups will be easier to get accurate information from, so I recommend that you send your questionnaires to the lowest leader possible; someone very knowledgeable of the tasks his/her business unit performs and the technology and services they rely on.
Additionally, when a true disaster occurs we need to understand which systems are the most critical to continuing and restoring business operations.
This is where performing a Business Impact Analysis (BIA) is essential.