Question1
One common experience that students in every college and university share is enrolling in a
college course.
Based on the Context Diagram and Data Flow Diagram that we discussed in class, expand
at least two processes into sub processes (Child Diagram), adding more data flows and data
stores.
Question 2:
Create a physical child data flow diagram for the following situation: The Fastbase Corporation
develops PC database software products that are sold for both the domestic and international
market. Customers receiving the products are sent a set of additional fonts if they return a
warranty registration card that is included with the software and documentation. The diagram
represents a batch process and is the child of process 5, ADD CUSTOMER REGISTRATION.
The following tasks are included:
a. Inspect the Warranty Registration Card received from the customer to ensure that the
b. Data entry operators key the Warranty Registration Card, thus creating a Warranty
c. A different data entry operator verifies the keyed data by reentering the Warranty
d. The Warranty Registration File is input to a batch edit program. Each record is
e. The valid Warranty Registration File is used as input, along with the Customer
information is complete and accurate. Incomplete cards are placed in a reject box.
Registration File.
Registration Card information. The data entry terminal compares the data previously
keyed with the entry made by the second operator. Discrepancies are displayed.
checked for accuracy. Errors are printed on a Warranty Validation Report, and valid
records are placed on valid Warranty Registration File.
Master File, into the Customer Warranty Update Program. Records are added or
updated, depending on whether the customer already exists on the Customer Master
File.
f. The valid Warranty Registration File is used to print a series of mailing labels for
sending the font software to the customer.
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