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Unit-1 Software Engineering
1
Program : MBA
Semester : IV
Subject Code : MI0033
Subject Name : Software Engineering
Unit number : 1
Unit Title : The Process and the Product
Lecture Number : 1
Lecture Title : The Process and the Product
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Unit-1 Software Engineering
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Marketing Mix
Objectives :
To elucidate the objectives of software engineering
To describe Process and its framework
To analyse the process patterns and process models
To differentiate between software programs and software
product
To Illustrate product line engineering
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Lecture Outline
Introduction
Objectives of Software Engineering
The Process and its framework
Process Patterns and Process Models
Types of software
Differences between software product and software program
Product Line Engineering
Summary
Check Your Learning
Activity
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Introduction
A software is a set of programs that instructs the computer to
executea task.
A software process is a set of activities that involves both
people andprocess.
Software engineering is a set of theories, techniques, and tools
anddepends on two factors such as discipline and product.
In this session, we will learn the structure of a software
process, differentprocess patterns, and its various process
models.
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Objectives of Software Engineering
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Ease ofreuse
Highperformance
Lowproduction
costs
Delivery ontime
LowMaintenance
HighReliability
Satisfyuserrequirement
Objectivesof SE
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The Process
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SoftwareDevelopment
Process
SoftwareSpecification SoftwareValidation
SoftwareEvolutionSoftwareDevelopment
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Process Framework
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Process Patterns
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Process Pattern
Task Process Pattern
Phase Process Pattern
Stage Process Pattern
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Process Models
Process model is a step by step, systematic approach for
software development.
The three major models of software process are:
Waterfall model
Spiral model
V model
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Unit-1 Software Engineering
Generally there are two kinds of software used in a variety of
products.
They are:
System Software: It is written to serve other programs. It
refers tothe files and programs that make up a computers operation
system.
Application Software: Application program is not involved
inperforming the task directly; instead, it uses the capabilities
of thecomputer in performing a single or multiple tasks.
Types of Software
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Differences between SoftwareProgram and Software Product
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Unit-1 Software Engineering
Product Line Engineering
Product line engineering is the process of studying the product
family.
It is also called product family engineering. Product family
refers to the
architecture of the product platform of an organisation.
Benefits of product line engineering are:
Improved productivity by as much as 10 times. Increased quality
by as much as 10 times.
Decreased cost by as much as 60%.
Decreased labour needs by as much as 87%.
Decreased time to market (to field, to launch) by as much as
98%.
Ability to move into new markets in months, not years.
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Summary
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Software process is a set of activities involving peopleand
process.
Product role and Process roles are the two roles of
software.
System software and application software are the two types
ofsoftware.
Product line engineering is the process of studying the product
family.
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Check Your Learning
1. Name the phases in the software development process.
Ans. The phases in software development process are:
Software Specification
Software Development
Software Validation
Software Evolution
2. What are the major process models?
Ans. The software process models are:
Waterfall model Spiral model
V model
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Activity
Assume that you are working in a software company.
Your company has bagged a project from a prestigious
company.
You are chosen as the team lead for this project.
The project has to be submitted within a short period of
time.
You realise that to submit the project on time, you have
to develop the process and test the methodologies
simultaneously. Which process model would you use
in this scenario?
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