Discuss why some systems developers believe that a data model is one of the most important parts of the statement of information system requirements.

(In order to receive credit, be sure to list one website source that supports your answer)2. Answer the following Petrie Electronics Case question based on information from p. 254, PE Figure 7-1 and information and diagrams from pgs. 305-306 in your textbook. CASE QUESTION: For each of the six entities listed in the Data Flow Diagram, PE Figure 8-1, on p. 305, brainstorm and list the attributes below that would identify the entity.Coupon Attributes:
Customer Attributes:
Product Attributes:
Promotion Attributes:
Service Attributes:
Transaction Attributes:

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