Background

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:

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:

Task $1$: Draw a context diagram for the new C$3$ system.

Task $2$: Draw a DFD diagram $0$ that shows the three processes, the data store, and the data flows.

Task $3$: Management has decided to make some changes and 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 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.

$1.$ Draw a context diagram for the new C$3$ system that shows the revised design.

$2.$ Draw a DFD diagram $0$ that shows the revised design.

$3.$ You can use Microsoft Visio to create your DFDs$.$

Initial context diagram $(20$ points$)$

Initial diagram $0(50$ points$)$

Revised context diagram $(10$ points$)$

Revised diagram $0(20$ points$)$