Tribhuwan University

Institute of Science and Technology

Model

Bachelor Level / Second Year / Fourth Semester / Science

Bachelors in Information Technology (BIT253)

(Systems Analysis and Design)

Full Marks: 60

Pass Marks: 24

Time: 3 Hours

Candidates are required to give their answers in their own words as for as practicable.

The figures in the margin indicate full marks.

Section A

Long Answers Questions

Attempt any TWO questions.
[2*10=20]
1.
Why do we need system development life cycle (SDLC)? Explain each phase of SDLC in detail.[10]
2.
What is feasibility study? Explain different types of feasibility tests in detail. How do you measure economic feasibility?[10]
3.
Explain different components of data flow diagram (DFD) with example. Draw context diagram and data flow diagram for a retail store in a mall which sells different items to its customers.[10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
What is spiral development approach? Explain. [5]
5.
How do you represent project schedules? Explain. [5]
6.
Explain process of initiating and planning information system development project in brief. [5]
7.
Explain joint application design (JAD) approach to collect information requirements for developing information system. [5]
8.
Why do we need ER diagram during information system development? Explain with example. [5]
9.
Why software testing in important? Explain any three software testing techniques. [5]
10.
How do you format forms and reports? Explain. [5]
11.
What are the benefits of object-oriented database? What is object identity? [5]
12.
Write short notes on: a. Object Oriented development b. System maintenance [5]