a. Data flow diagrams incorporate four symbols. Identify those symbols and suggest how each might be applied
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b. Netcom would need to maintain a database of customer records; that database would likely include (at a minimum) a customer table and a subscription table. Create specifications (field names) for both tables, indicating primary keys by underlining and foreign keys with brackets.
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Related Book For
Accounting Information Systems basic concepts and current issues
ISBN: 978-0078025334
3rd edition
Authors: Robert Hurt
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