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:

Data Flow	From	To
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

Challenge Tasks 

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.