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Hi I Need Help With Essay On Data Flow Diagram Level 1 Paper Must Be At Least 15

Hi, I need help with essay on Data Flow Diagram Level 1. Paper must be at least 1500 words. Please, no plagiarized work!

Two relationships have been added in the above diagrams which were not given in figure 7-20 include: one and only one customer can perform zero or many transactions at a time and only one customer could have zero or many coupons at a time. The remaining relationships are the same as described in the given figure. However, the minimum cardinalities have been added i-e zero or one with many entities as shown in the above


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