System Analysis and Design 2070

Group A

Long Answer Questions:

Attempt Any Two:                                                                                                    (2x10=20)

1.  Mention the key steps of system development life cycle and explain each steps with example.

2.  What are the key steps for designing E-R diagram? Explain with example

3.  Develop a decision tree and a decision table for the following :

                          ·         If the person is under three years of age, there is no admission fee.

·         If a person is under 16, half the full admission is charged and this admission is reduced to a quarter of full admission if the person         is accompanied by an adult (the reduction applies only if the person is under 12).

·         Between 16 and 18, half the full admission fee is charged if the person is a student; otherwise the full admission is charged.

·         Over 18, the full admission fee is charged.

      ·         A discount of 10 percent is allowed for a person over 16 if they are in a group of 10 or more.

·         There are no student’s concessions during weekends. On weekdays under -12s get one free ride.

Group B

Short Answer Questions:

Attempt Any Eight:                                                                                                  (8x5=40)

4.  What are the types of information system?

5.  Differentiate between physical DFD and logical DFD.

6.  What do you mean by database normalization? Why is it important?

7.  Why feasibility analysis is necessary before designing a system?

8.  Explain modeling tools.

9.  Explain with example of tangible and intangible benefit.

10.  What do you mean by Quality assurance? Explain with example.

11.  Comparison between corrective, adaptive, perfective and preventive maintenance.

12.  Differentiate between object modeling and dynamic modeling.

13.  What are the main deliverable from testing and installation?