ALCCS
NOTE:
· Question 1 is compulsory and
carries 28 marks. Answer any FOUR questions from the rest. Marks are indicated against each question.
· Parts of a question should be
answered at the same place.
· All
calculations should be up to three places of decimals.
Q.1 a. What are the different types of
softwares?
b. Discuss
the prototype model. What are its advantages and disadvantages.
c. Discuss
data flow diagram as a tool for Structured Analysis.
d. Discuss Bottom – up Design and Top
– down Design. When is it appropriate to
use them?
e. Differentiate
between
(i) Alpha
testing and Beta testing.
(ii) Software
Verification and Software Validation.
f. What
are legacy systems. Why do they require
re-engineering.
g. Define
the following terms:
(i) Error (ii) Fault
(iii) Test Case (iv)
Failure (7 4)
Q.2 a. Discuss the advantages and disadvantages of the following process
models:
(i) Waterfall Model.
(ii)
Incremental Model.
(iii) Spiral
Model.
b. What are the components of
software requirement specification document? (12+6)
Q.3 a. Discuss emperical and
heuristic cost estimation techniques.
b. Describe
the various steps involved in Requirements Engineering.
c. What
are the characteristics of a good Software Design document? (6+6+6)
Q.4 a. Define cohesion and coupling. Discuss the different types of coupling.
b. What is data
dictionary. What is its role in the
context of a DFD.
c. Explain the principles of
Abstraction, Partitioning, Projection and Modularity in structured analysis and
design. (6+4+8)
Q.5 a. What is software
maintenance? Describe various categories
of software maintenance. Which category consumes maximum effort and why?
b. What is Regression Testing? What is its role in Integration
Testing.
c. What is a CASE tool, CASE
workbench, CASE environment and CASE support.
d. What is software debugging? What
are the steps involved in software debugging. (5+5+3+5)
Q.6 a. Consider the flow
graph shown in the figure given below ( where 1,2,…5 denotes the numbering of
nodes and a, b, … h denote distances between two nodes) and draw the connection
matrix for it. Find out the cyclomatic complexity and two/ three link paths
from a node to any other node. (7)
b. Distinguish
between the following:
(i) Structural testing and Functional
testing
(ii) Unit testing and Integration testing (32)
c. Consider
the following program segment.
void
sort ( int a[], int n)
{
int i, j;
for (i=1; i<n-1; i++)
for (j=i+1; j<n; j++)
if (a[i] > a[j])
{
temp = a[i];
a[i] = a[j];
a[j] = temp;
}
}
(i) Draw the control flow graph for this program
segment. (2)
(ii) Determine the cyclomatic complexity
for this program. (3)
Q.7 Write a short notes on any THREE: (63)
(i) PERT/CPM
(ii) Function
Points
(iii) Software Design Document
(iv) Walkthroughs and Inspections