The IT team at Game Technology is moving forward with the new Customer Contact Care information system, or C 3 . Your next assignment is to develop a set of data flow diagrams (DFDs). To be sure you can handle the tasks, you decide to review Chapter 5 of your systems analysis textbook. Based on your requirements model, you know that the new C 3 system will have three external entities, with the following data flows:
|Entity||Data Flow from the Entity||Data Flow to the Entity|
|Customer||Contact Information||Sales Specials|
|Sales Records||System Customer Sales History||None|
|Marketing Rep||Suggested Contact Plan||Sales Feedback|
The C 3 system also will have three processes (Analyze Customer Data, Analyze Sales History, and Manage Contact Plan), a data store (Customer Profile), and the following data flows:
|Contact Information||Customer entity||Analyze Customer Data process|
|Sales Specials||Manage Contact Plan process||Customer entity|
|Customer Sales History||Sales Records System entity||Analyze Sales History process|
|Suggested Contact Plan||Marketing Rep entity||Develop Contact Plan process|
|Sales Feedback||Analyze Sales History process||Marketing Rep entity|
|Customer Data (two-way)||Analyze Customer Data process||Customer Profile data store|
|Customer Data (two-way)||Customer Profile data store||Analyze Customer Data process|
|Profile Data||Customer Profile data store||Manage Contact Plan process|
|Sales Data||Analyze Sales History process||Customer Profile data store|
Your context diagram and DFD diagram 0 were accurate, but there have been some design changes. Management has decided to connect the external Accounts Receivable System directly to the C 3 system as a fourth entity. A two-way data flow called AR Data will connect this entity to the C 3 system. Inside the C 3 system, AR Data will connect to the Analyze Sales History Critical Thinking Challenge: Tasks Page process. Also, another new two-way data flow called Billing Data will connect to the Analyze Sales History process and the Customer Profile data store.
Task 1. Draw a context diagram for the new C3 system that shows the revised design.
Task 2. Draw a DFD diagram 0 that shows the revised design.
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