Osmania University (OU) 2007 B.C.A Computer Application Systems Analysis and Logical design - Question Paper

1. List any 3 classes of info systems.

2. describe environment of a system.

3. List the 4 skills needed by the successful systems analyst.

4. describe critical path.

5. In which phase of the system development life cycle does project planning typically occur ?

6. List any 4 feasibility factors.

7. describe discount rate.

8. Expand ROI.

9. List any 3 traditional methods of collecting systems requirements.

10. describe prototyping

11. List 4 various kinds of data flow diagrams used in the system development process.

12. List any 3 guidelines for drawing DFD'S

13. What does the term "limited entry" mean in a decision table.

14. describe trigger.

15. List out 3 kinds of logical models

16. Draw symbol for entity in E-R diagram.

17. describe actor in use-case modelling.

18. Draw the class diagram with association relationship "A university offers large number of courses ."

19. Match the subsequent :

a. Aggregation 1. Is a relation
b. composition 2. A set of objects
c. inheritance 3. Part of relation

20.List the 4 phases of RAD as described by James Martin.

21.What is meant by scalability ?

22. Expand JAD.

23. List out the 3 characteristics of usability

24. List any 4 kinds of module coupling

25. Expand PERT.

PART-B

UNIT-I

2. define your college as a system. What is the input ? the output ? the boundary ? the components ? their interrelationships ? the constraints ? the purpose ? the interfaces ? the environment ? Draw a diagram of this system. 10m

3. A software project has been described to contain the subsequent list of activities along with their needed times for completion : activity Time(weeks) Immediate

Predecessors
1.Collection of requirements two -
2.Analyze processes three 1
3.Analyze Data three 2
4.Design processes seven 2
5.Design data five 3
6.Design screens one 3,4
7.Design reports five 4,5
8.Program four 6,7
9.Test and document eight 7
10.Install two 8,9

Draw a PERT chart for the activities.
compute the earliest completion time Show the critical path What would happen if activity six was revised to take four weeks instead of 1 week.

UNIT-11

4. List and define the steps in the project initiation and planning process.

OR

5. compare collecting info by interview and by questionnaire.

define an hypothetical situation in which every of these methods would be an effective way to collect info system requirements.

Earning:   Approval pending.