Mission—essential functions/identification of critical systems

When we look at BIA as a whole we have to see what the company's mission—essential functions are; for example, an airline depends heavily on its website to sell airline tickets. If this was to fail it would result in a loss of revenue. Critical systems for the airline would be the server that the website was placed on and its ability to contact a backend database server such as SQL that would hold ticketing information and process the credit card transactions and order history for each of their customers.

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