Indira Gandhi National Open University (IGNOU) 2005 Diploma Computer Applications CS10 Software Engineering - - Question Paper

ADCA / MCA (II Yr)
Term-End exam

June, 2005

CS10 : Software Engineering

Time: three hours
Maximum Marks: 75

Note : ques. No. one is compulsory. ans any 3 ques. from the rest.
1. (a) (a) Suppose you want to develop software for a Visitors Registration System for an office- Whenever a visitor wants to meet any staff member in the office, the system will record the name of the visitor, name of the staff, time of entry, purpose of visit and time of exit. The system also should have the subsequent features :
. To display the names of all visitors to a staff member daywise.
. To display the time spent by a particular visitor in the office.
. To display the names of all visitors who are in office at a particular time.

For the above mentioned system,
(i) develop a Systems Requirement Specifications.
(ii) design DFDs for two levels.
(iii) identify the software modules and their functions. (iv) suggest a testing strategy for any 1 of the software modules proposed in (iii) above. (20)

(b) Develop a procedural design for a program that prints the distinct characters in its input strtng. Write 2 test cases for the procedure. (10)

2. (a) discuss 4 categories of software. Also, provide an example of an application for every category. (6)

(b) What is the need of Re-engineering ? With the help of an example, discuss the restructuring technique for re-engineering. How is reverse engineering various from re-engineeing ? (9)

3. (a) discuss the Waterfall model with an example. Write at lowest 2 disadvantages of the Waterfall model when compared with the Prototyping model. (9)

(b) Write 3 characteristics of an Agile Software process. discuss 3 human factors that affect an Agile Software process. (6)

4. (a) Write, and explain, the principle of function, oriented metrics, with the help of an example. provide 3 differences ranging from function-oriented metrics and size-oriented metrics. (7)

(b) With the help of a diagram, discuss the major activities in the Spiral Model. (5)

(c) describe a "Work-Product". How can you ensure that the Work Product is right ? (3)

5. (a) discuss the 4 steps of the "Requrrements Engineering Process". Take an example of an application and discuss the steps involved in the Requirements Engineering Process. (8)

(b) Draw an E-R diagram for a Library info System. Mention the assumptions made by you, if any. (7)

Earning:   Approval pending.