Essay and diagram flow of an atm

1. Draw a Dataflow diagram of a ATM.  The database and dataflow diagrams can be as simple or as complex as you want them to be. Obviously, the more detail the better. Please use different colors to display sections. Please see example on page 36.

2. Write an essay explaining why it can be easy to miss a step or forget a critical path when designing an application.

Combine both parts 

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