Is a DFD an effective documentation technique for identifying who or what performs a particular task? Explain.
What will be an ideal response?
No. A DFD shows which tasks are being performed, but not who performs them. It depicts the logical system.
PTS: 1
Computer Science & Information Technology
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What is the relationship between a primary key and its corresponding foreign keys?
a. One-to-one. b. Many-to-one. c. Many-to-many. d. One-to-many.
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Which of the following is the e-mail user ID, if the e-mail address is alexsmith@cis.mit.edu?
A. alexsmith@cis.mit.edu B. alexsmith C. cis.mit.edu D. alexs
Computer Science & Information Technology
My Starbucks Idea is a virtual ____.
A. inbox B. suggestion box C. e-mail box D. none of the above
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A(n) ____________________ guides design, development, and maintenance tasks.
Fill in the blank(s) with the appropriate word(s).
Computer Science & Information Technology