20 Critical Thinking Questions 5-1 The analysts at Techno InfoSystems are considering the four-model approach to system development for a new client. If they make use of the four-model approach, which is a likely outcome? a. The time required to develop the model will increase. b. The requirements of a new information system will always be different from those of the current information system. c. It will not be possible to get a clear picture of the current system functions before modifications are made. d. Costs of developing a logical and physical model of the current system will decrease.
20 Critical Thinking Questions 5-1 The analysts at Techno InfoSystems are considering the four-model approach to system development for a new client. If they make use of the four-model approach, which is a likely outcome? a. The time required to develop the model will increase. b. The requirements of a new information system will always be different from those of the current information system. c. It will not be possible to get a clear picture of the current system functions before modifications are made. d. Costs of developing a logical and physical model of the current system will decrease.
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Critical Thinking Questions 5-1
The analysts at Techno InfoSystems are considering the four-model approach to system development for a new client.
If they make use of the four-model approach, which is a likely outcome?
a. |
The time required to develop the model will increase.
|
|
b. |
The requirements of a new information system will always be different from those of the current information system.
|
|
c. |
It will not be possible to get a clear picture of the current system functions before modifications are made.
|
|
d. |
Costs of developing a logical and physical model of the current system will decrease.
|
Expert Solution
Introduction
Every organization has to make numerous changes in its system. However, it is necessary to know the after-effects of the changes prior to implementing them.
Four model approach is a way to understand the differences created in the system before and after the application as this model creates four models namely:
- physical model of the current system
- logical model of the current system
- logical model of the new system, and
- physical model of the new system.
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