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    Hi, I'm doing a Level 3 CTEC in IT. I have to create two DFD's of different levels with a key. One has to show the input of information to New Look from a process and the other must show the output of information. I'm completely stuck and i get confused everytime I try. I don't understand DFD's and I don't understand what i am doing. Any help would be greatly appreciated.
 
 
 
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