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M.Tech. DEGREE EXAMINATION, JUNE 2012.

Second semester

Information Technology

IT 9221INFORMATION SYSTEM DESIGN

(Regulation 2009)

Time: Three hours Maximum: 100 marks

Answer ALL the Questions

PART A(10 2 = 20 marks)

1.

Give some of the User roles in System Development process.

2. List the key objectives for an organization to set up an information system.

3. Differentiate between the Mathematical and Graphical models for representing systems.

4. List the Methods and Heuristics needed to analyze the Information System Structure.

5. State the Human factors that influence the Decision making in IS.

6. What are the Information System Capabilities useful in Decision making?

7. State the Cost benefits of any Information System application.

8. Give some of the Transaction processing applications available in IS.

9.

Name the various phases in System development life cycle.

10.State the limitations of off-the shelf software packages.

PART B(5 16 = 80 marks)

11.(a) (i) Explain how the Information System plan can be matched on to the

Organizational Strategic plan.

(ii) Write Short notes on:

(1)Recoverability

(2)Maintainability in System Design.

Or

(b) (i) Explain about how the Key Organizational objectives are identified.

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(ii) Enumerate on the Steps needed to develop an Information System.

12.(a) (i) With a neat labeled block diagram, explain about Information

Architecture.

(ii) Write notes on the following methods for analyzing Information System:

(1)

Decomposition

(2)Aggregation

Or

(b) (i) Enumerate on the following hierarchical models.

(1) Tree diagram

(2) Organization chart.

(ii) Explain about the Information flow and process flow of analyzing the

Information System structure.

13.(a) (i) Discuss about the Problem Characteristics and Information system

capabilities in Decision making.

(ii) How will you identify a information as needed in support of decision

making?

Or

(b) (i) Write short notes on:

(1) Information content

(2) Summarizing and filtering of information.

(ii) Discuss about the Uncertainty and inferences in making up the decision in

Information Theory.

14.

(a) (i) Explain about the Information System Application for Budgeting and

Planning.

(ii) Compare and contrast Centralized and Decentralized Allocation

mechanism.

Or

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(b) With a neat diagram, discuss about.

(i) Basic Accounting Applications

(ii) Evaluating Remote Conferencing and Graphics.

15.

(a) (i) Write in detail about the system development life cycle with an example.

(ii) What is outsourcing? Compare the different methodologies used for the

maintenance of the information systems.

Or

(b) (i) Write short notes on:

(1) Off-the shelf software packages.

(2) End-user development Process.

(ii) Enumerate on the limitations of the system development life cycle.