Anna University Chennai 2005 B.E ANALYSIS AND DESIGN OF INFORMATION SYSTEMS - Question Paper

Code: DC-06 Subject: ANALYSIS AND DESIGN OF info SYSTEMS
Time: three Hours Max. Marks: 100
NOTE: There are 11 ques. in all.
ques. one is compulsory and carries 16 marks. ans to Q. 1. must be written in the space given for it in the ans book supplied and nowhere else.
ans any 3 ques. every from Part I and Part II. every of these ques. carries 14 marks.
Any needed data not explicitly given, may be suitably presumed and said
Q.1 Choose the accurate or best option in the following: (2x8)

a. Flow of info across the boundary of a system or ranging from 2 sub-systems is called as
(A) Environment. (B) Walk through.
(C) Interface. (D) Supra system.

b. Decision Support System is used at which level in the organization
(A) Operational level. (B) Operational control level.
(C) Management control level. (D) Strategic planning level.

c. The subsequent is not a phase of System Development Life Cycle
(A) System Operation. (B) System Analysis.
(C) System Design. (D) System Testing.

d. The formal process of research, meetings, interviewing, questionnaire and other techniques to collect info about system requirements is called
(A) System reengineering. (B) Fact-finding.
(C) Logical design. (D) Structured analysis.

e. The model of system data and their relationships is represented by
(A) Decision Tree. (B) Decision Table.
(C) E-R Diagram. (D) Structure Chart.

f. Which of the subsequent is not an objective of system design
(A) Cost-effectiveness. (B) Security.
(C) Flexibility. (D) Career Advancement.
g. Testing conformance to system objectives is known as
(A) valuation. (B) validation.
(C) verification. (D) reassurance.

h. Which is the most risky method of system implementation
(A) Parallel run. (B) Retrospective run.
(C) Swift cut-over. (D) Pilot run.
PART I
ans any 3 ques.. every ques. carries 14 marks.
Q.2 a. What are the characteristics and elements of a typical business system. (7)

b. What techniques would you use to gather info about an application system during requirement analysis? (7)

Q.3 a. Describe the chronological phases of the System Development Life Cycle(SDLC). (7)

b. What is the purpose of feasibility study? Differentiate ranging from technical, operational and economic feasibility. (7)

Q.4 a. Construct Data Flow Diagram to define the process of problem and return of books at a library counter. (8)

b. Write the process specification to define any 2 important processes of the above DFD. (6)

Q.5 a. Describe the concepts of Entity, Attribute, Primary key and Cardinality giving suitable examples. (8)

b. Construct an E-R diagram showing the relationship ranging from Teachers, Students and subjects taught. Show the Attributes, Primary key and specify the Cardinality. (6)

Q.6 a. Briefly define the tools of structured system analysis. (7)

b. Construct a structure chart to define the process of updating an Employee Master File. (7)PART II
ans any 3 ques.. every ques. carries 14 marks.
Q.7 a. How would you estimate the costs and benefits of a proposed system? How would you select the best from a set of candidate systems? (8)

b. Describe the features of robustness and usability of an interface. (6)

Q.8 a. Describe the interview structure. (6)

b. Differentiate ranging from open and closed ques.. provide an example of every for order placement system. (4)

c. List the merits and demerits of interviews. (4)

Q.9 a. What are the essential features of object-oriented analysis? (6)

b. How are they various from conventional structured analysis? (4)

c. Differentiate ranging from an object, class and class diagram. (4)

Q.10 a. What is walk through? How are they carried out? (4)

b. What are the different stages of testing during the system development process?
What is the purpose of every kind of testing? (10)

Q.11 Write notes on

(i) Audit trails.
(ii) Human factors for GUI.
(iii) System quality assurance.
(iv) Logical and physical design. (3.5 x 4)

Earning:   Approval pending.