A <em>"DATA FLOW DIAGRAM"</em> is a modeling tool used in structured systems analysis and design (SSAD) analysis model that helps break down a complex process into simpler, more manageable, and more understandable subprocesses
 
        
             
        
        
        
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Explained
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Yes, I agree that digital signatures are the best way to protect the data in the date in question. A digital signature is mathematical technique used to validate the authenticity and integrity of a massage. Digital signature is far more inherent security. It is built to solve problems of tempering and impersonation of digital documents. It allows the authorized user to have authentic right, and the unauthorized person is denied access.
 
        
             
        
        
        
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Hey mate.....
Explanation:
This is ur answer.....
<em>Input refers to any information, or data, that is sent to a computer for processing. Input is often sent to the computer from a device such as a keyboard, mouse, or other input device. Putting it simple, input is the act of entering data into a computer.</em>
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