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

ADCA / MCA (II Yr)
Term-End exam

December, 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 department of a University wants to develop a s/w system to decrease the amount of paperwork and for quick response. The main objectives of this s/w system are to maintain the subsequent :
. records of learner qireries
. on line sludent transcripts
. online learner enrolment
For the above mentioned system
(i) Develop a System Requirement Specification.
(ii) Design DFD at 2 levels.
(iii) Identify the software modules and their functions.
(iv) Suggest a testing strategy for any 2 s/w modules proposed in (iii) above.
Make assumptions, if necessary. (20)

(b) Differentiate ranging from Process and Product. Which 1 is more important and why ? (5)

(c) discuss at lowest 5 user interface design principles. (5)

2. (a) discuss linear sequential model and prototype model. Compare both of them with suitable example. (9)

(b) Draw the E-R diagram for airline reservation system. Mention different entities ard their attributes. Make assumptions, wherever necessary. (6)

3. (a) How can you enhance the maintainability during development ? discuss various activities. (5)

(b) discuss the subsequent terms : (3)
(i) Reusability
(ii) Extensibility
(iii) Robustoess

(c) Write at lowest 3 differences ranging from Forward Engineering and Reverse Engineering. (3)

(d) What is the purpose of Data Dictionary ? discuss with suitable examples. (4)

4. (a) What is Risk Management ? discuss 5 risk management techniques. (7)

(b) How can metrices be helpful in s/w Process improvement ? discuss. Compare function oriented metrices with size-oriented metrices. (Mention at lowest 3 differences) (8)

5. (a) Write at lowest 5 differences ranging from Black Box Testing and White Box Testing. (5)

(b) Write at lowest 5 differences ranging from Data Flow Diagrams and E-R diagnms. (5)

(c) Why is Reliability, an external attribute of the software ? List 3 internal product attributes that could affect reliability. (5)

Earning:   Approval pending.