Fundamentals of Information Systems
8th Edition
ISBN: 9781305082168
Author: Ralph Stair, George Reynolds
Publisher: Cengage Learning
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Chapter 2, Problem 6SAT
Program Plan Intro
An example of command driven
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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 2 Solutions
Fundamentals of Information Systems
Ch. 2 - Identify and discuss the role of the essential...Ch. 2 - Prob. 2LOCh. 2 - Prob. 3LOCh. 2 - Prob. 4LOCh. 2 - Prob. 5LOCh. 2 - • Identify and briefly describe the functions of...Ch. 2 - Prob. 7LOCh. 2 - Prob. 8LOCh. 2 - Prob. 9LOCh. 2 - Prob. 10LO
Ch. 2 - Identify several key software issues and trends...Ch. 2 - Prob. 1.1DQCh. 2 - Prob. 1.2DQCh. 2 - Prob. 1.1CTQCh. 2 - Prob. 1.2CTQCh. 2 - Prob. 2.1DQCh. 2 - Prob. 2.2DQCh. 2 - Prob. 2.1CTQCh. 2 - Prob. 2.2CTQCh. 2 - Prob. 1SATCh. 2 - Prob. 2SATCh. 2 - Prob. 3SATCh. 2 - Prob. 4SATCh. 2 - Prob. 5SATCh. 2 - Prob. 6SATCh. 2 - Prob. 7SATCh. 2 - Prob. 8SATCh. 2 - Prob. 9SATCh. 2 - Prob. 10SATCh. 2 - Prob. 11SATCh. 2 - Prob. 12SATCh. 2 - Prob. 1RQCh. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Give three examples of Smartphone operating...Ch. 2 - Prob. 10RQCh. 2 - What is an application programming interface?Ch. 2 - Prob. 12RQCh. 2 - Prob. 13RQCh. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Prob. 1DQCh. 2 - Prob. 2DQCh. 2 - Prob. 3DQCh. 2 - Prob. 4DQCh. 2 - Prob. 5DQCh. 2 - Prob. 6DQCh. 2 - Prob. 7DQCh. 2 - Prob. 8DQCh. 2 - Identify the three spheres of influence and...Ch. 2 - Prob. 10DQCh. 2 - Prob. 11DQCh. 2 - Prob. 12DQCh. 2 - Prob. 13DQCh. 2 - Prob. 1PSECh. 2 - Prob. 2PSECh. 2 - Prob. 3PSECh. 2 - Prob. 4PSECh. 2 - Prob. 1WECh. 2 - Prob. 2WECh. 2 - Prob. 3WECh. 2 - Prob. 1CECh. 2 - Prob. 2CECh. 2 - Prob. 3CECh. 2 - Prob. 1.1CSCh. 2 - Prob. 1.2CSCh. 2 - Prob. 1.1aCSCh. 2 - Prob. 1.2aCSCh. 2 - Prob. 2.1CSCh. 2 - Prob. 2.2CSCh. 2 - Prob. 2.1aCSCh. 2 - Prob. 2.2aCS
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