NALANDA OPEN UNIVERSITY QUESTION, 2012, M.C.A , Part-II, Paper-XII (Object Oriented Analysis and Design)

NALANDA OPEN UNIVERSITY QUESTION, 2012, M.C.A , Part-II, Paper-XII (Object Oriented Analysis and Design)

                                                                               2012
                                                                        Full marks: 80
                                                                         Time: 3 hours
                                          Answer any five questions. All questions carry equal marks.

1. Identify class objects instances generalization, association, inheritance of the followings and explain the properties:-
    (i) Teacher-Student
    (ii) Computer-and its parts
    (iii) Employee-Manager

2. What is the purpose of functional modelling? Explain the model with an example.

3. Draw a DFD for library Information system upto 2 levels. Explain each component used and how they are participating in the diagram.

4. What is Design optimization ? Does the rearrangement in execution order affect the design?

5. Explain Objects, classes, Encapsulation and abstraction with example for each.

6. Write shorts on the following:-
    (i) Association
    (ii) Aggregation
    (iii) Concurrency

7. Draw a object and class diagram for university registration system.Explain each component used in detail,

8. Write short on the following:-
    (i) Sequence Diagram
    (ii) State diagram
    (iii) Collaboration diagram

9. What is Inheritance? How does inheritance help in sharing the properties of a class ? Explain with the help of a suitable diagram.

10. Define state charts. Explain the two strategies to implement state charts.