Fundamentals of Information Systems
9th Edition
ISBN: 9781337097536
Author: Ralph Stair, George Reynolds
Publisher: Cengage Learning
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Chapter 9, Problem 11SAT
Program Plan Intro
Choose the correct option to fill in the blank.
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using r language
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You are given a class that processes purchases for an online store. The class receives calls to:
•
Retrieve the prices for items from a database
• Record the sold items
•
Update the database
•
Refresh the webpage
a. What architectural pattern is suitable for this scenario? Illustrate your answer by drawing a
model for the solution, showing the method calls/events.
b. Comment on how applying this pattern will impact the modifiability of the system.
c. Draw a sequence diagram for the update operation.
Chapter 9 Solutions
Fundamentals of Information Systems
Ch. 9 - Prob. 1LOCh. 9 - Prob. 2LOCh. 9 - Prob. 3LOCh. 9 - Prob. 4LOCh. 9 - Prob. 5LOCh. 9 - Prob. 1.1RQCh. 9 - Prob. 1.2RQCh. 9 - Prob. 1.1CTQCh. 9 - Prob. 1.2CTQCh. 9 - Prob. 2.1RQ
Ch. 9 - Prob. 2.2RQCh. 9 - Prob. 2.1CTQCh. 9 - Prob. 2.2CTQCh. 9 - Prob. 1SATCh. 9 - Prob. 2SATCh. 9 - Prob. 3SATCh. 9 - Prob. 4SATCh. 9 - Prob. 5SATCh. 9 - Prob. 6SATCh. 9 - Prob. 7SATCh. 9 - Prob. 8SATCh. 9 - Prob. 9SATCh. 9 - Prob. 10SATCh. 9 - Prob. 11SATCh. 9 - Prob. 12SATCh. 9 - Prob. 13SATCh. 9 - Prob. 14SATCh. 9 - Prob. 1RQCh. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Prob. 4RQCh. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Prob. 8RQCh. 9 - Prob. 9RQCh. 9 - Prob. 10RQCh. 9 - Prob. 11RQCh. 9 - Prob. 12RQCh. 9 - Prob. 13RQCh. 9 - Prob. 14RQCh. 9 - Prob. 15RQCh. 9 - Prob. 16RQCh. 9 - Prob. 1DQCh. 9 - Prob. 2DQCh. 9 - Prob. 3DQCh. 9 - Prob. 4DQCh. 9 - Prob. 5DQCh. 9 - Prob. 6DQCh. 9 - Prob. 7DQCh. 9 - Prob. 1PSECh. 9 - Prob. 2PSECh. 9 - Prob. 1WECh. 9 - Prob. 2WECh. 9 - Prob. 3WECh. 9 - Prob. 1CECh. 9 - Prob. 2CECh. 9 - Prob. 3CECh. 9 - Prob. 1.1CSCh. 9 - Prob. 1.2CSCh. 9 - Prob. 1.3CSCh. 9 - Prob. 2.1CSCh. 9 - Prob. 2.2CSCh. 9 - Prob. 2.3CS
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