20Critical Thinking Questions 5-1The 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.

Answered: 20 Critical Thinking Questions 5-1 …

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

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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.

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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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