BT0081, SOFTWARE ENGINEERING

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ASSIGNMENT

PROGRAM	BSc IT
SEMESTER	FOURTH
SUBJECT CODE & NAME	BT0081, SOFTWARE ENGINEERING
CREDIT	4
BK ID	B1090
MAX.MARKS	60

Q.1 Explain Information content and determinacy.

Answer: The kind of 'information' produced by a mindless computer program or a natural, physical mindless process is cheap, worthless, meaningless information. Just let it run forever and it produces an endless stream of 'information'! That is not what humans call information. There is the real paradox.

Another way of stating the paradox is: a long random string of letters has a higher Information Content then a book of the same length. This is so because a random string is hardly compressible at all, while the content of a book can easily be compressed (as everyone knows who uses PC compression programs as pkzip, winzip, etc). In fact a random string has the

Q.2 Describe spiral model and its various task regions.

Answer: The spiral model comprises activities organized in a spiral, and has many cycles. This model combines the features of the prototyping model and waterfall model and is advantageous for large, complex, and expensive projects. The objective of the spiral model is to emphasize management to evaluate and resolve risks in the software project. Different areas of risks in the software project are project overruns, changed requirements, loss of key

Q.3 Explain the various steps involved in establishing a reliability specification and statistical testing.

Answer: Design for Reliability (DFR) is not a new concept, but it has begun to receive a great deal of attention in recent years. What is DFR? What are the ingredients for designing for reliability, and what is involved in implementing DFR? Should DFR be part of a Design for Six Sigma (DFSS) program, and is DFR the same as DFSS? In this article, we will try to answer these questions and, at the same time, we will propose a general DFR process that can be adopted

Q.4 Differentiate object-oriented and function oriented approaches.

Answer: In object oriented programming everything (or almost everything) is treated as an object that can be modified and that can perform tasks, or in OOP speak one might say objects have state and behavior. What it buys you is modularity, and data hiding.

According to Object Oriented Programming an object that models a ball, from above the ball can be modified for example you may be able to change the color of the ball. It can also perform tasks for example the ball can roll, or be thrown. As an

Q.5 Identify the different documents which may be produced to aid the maintenance process.

Answer: ABSTRACT: Software engineering has been striving for years to improve the practice of software development and maintenance. Documentation has long been prominent on the list of recommended practices to improve development and help maintenance. Recently however, agile methods started to shake this view, arguing that the goal of the game is to produce software and that documentation is only useful as long as it helps to reach this goal.

SOFTWARE MAINTENANCE

Software maintenance is traditionally defined as any

Q.6 Discuss the various test design methods used in real time software testing.

Answer: Real-time testing involves testing a system when it is running at its normal operating speed to ensure that operations are completed within their deadlines. When is comes to testing real time software there is not one single method for testing it because of the nature of the software and the time constraints placed on it. As a result of this the software is quite difficult to test, meaning that we have to be exhaustive with our testing, which is why there isn’t one single method in which to test it. Therefore, in order to test such software several methods need to be employed in order to do this, these could include black and white box testing, sequence testing

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