SE 1 : Introduction to Software Engineering | Nature of Software | SE Full Course
Summary
TLDRIn this session, Vishali introduces the subject of software engineering, focusing on key concepts like the need for software engineering, characteristics of good software, and various types of software such as system, application, and web applications. The discussion covers essential topics like software processes, the software development life cycle (SDLC), and popular models such as the waterfall and agile models. The video provides insights into the importance of software engineering in developing reliable, cost-effective, and efficient software solutions, along with suggestions for reference books and interview preparation tips.
Takeaways
- 😀 Introduction to software engineering, combining software and engineering to develop effective and reliable software products.
- 📚 Suggested reading: Roger Pressman's 'Software Engineering: A Practitioner’s Approach' and Addison-Wesley’s book on software engineering.
- 💻 Software engineering applies scientific principles to design, build, maintain, and improve software frameworks and processes.
- 🏢 Software engineering is essential for handling large projects, managing costs, reducing time, and delivering reliable and effective software.
- 👍 Characteristics of good software include operational efficiency, transitional adaptability, and ease of maintenance.
- 📱 Different types of software include system software, application software, engineering and scientific software, embedded software, web applications, and AI software.
- 🔄 The software process involves four key activities: specification, development, validation (testing), and evolution (adaptation).
- 🚀 Software engineering uses various models like waterfall, RAD, spiral, V-model, incremental, agile, iterative, and big bang models.
- 🛠 STLC (Software Development Life Cycle) includes phases for creating, testing, and evolving software to meet user needs.
- 🌐 Examples of widely used software applications are social media platforms, banking apps, reservation systems, and scientific apps like weather prediction.
Q & A
What is the definition of software engineering according to the script?
-Software engineering is an engineering branch where software products are developed and evaluated using scientific principles, techniques, and procedures. It focuses on creating effective and reliable software.
Why is software engineering important for handling large projects?
-Software engineering is important for handling large projects because it helps manage and process vast amounts of data effectively, ensuring smooth communication between customers and organizations, such as in banking applications.
How does software engineering help manage costs during software development?
-Software engineering helps manage costs by ensuring that only necessary features are included in the software as per the customer's requirements. This reduces unnecessary expenses and allows for efficient budget management.
What are the three main characteristics of good software as mentioned in the script?
-The three main characteristics of good software are operational, transitional, and maintenance. Operational includes factors like efficiency and dependability, transitional involves portability and adaptability, and maintenance includes flexibility and scalability.
What are some examples of operational characteristics in good software?
-Operational characteristics in good software include budget-friendliness, efficiency (e.g., WhatsApp's video calling and chatting features), usability (easy for all users), and dependability (relying on other systems, such as contacts in WhatsApp).
What is the difference between system software and application software?
-System software refers to software like operating systems (e.g., Windows, Linux, Android) that provide a platform for other applications to run. Application software is developed for specific tasks or user needs, such as WhatsApp for communication or Flipkart for shopping.
What are embedded softwares, and where are they used?
-Embedded software is used to control and implement features for end-users. They are integrated into hardware, like routers, digital cameras, washing machines, and traffic control systems.
What is the purpose of the software process, and what are its main phases?
-The software process is a series of activities aimed at producing a quality software product. Its main phases are software specification (planning), development (coding), validation (testing), and evolution (adapting to changing client needs).
How does software validation work in the software engineering process?
-Software validation involves testing the software to ensure it meets customer requirements and functions correctly. If errors are found, they must be fixed by the developers or testers to ensure reliability.
What are some software development life cycle (SDLC) models mentioned in the script?
-The SDLC models mentioned in the script include the Waterfall model, RAD model, Spiral model, V model, Incremental model, Agile model, Iterative model, and Big Bang model.
Outlines
💻 Introduction to Software Engineering Series
The speaker, Vishali, introduces a new series on Software Engineering. The sessions will offer pointwise explanations, practical demos, and question banks on topics covered in the subject. Additionally, the channel will provide exam preparation tips, project presentation guidance, and free certification ideas. Vishali encourages viewers to like, share, and subscribe for future updates.
📘 Recommended Books for Software Engineering
Vishali recommends two books for Software Engineering: 'Software Engineering: A Practitioner’s Approach' by Roger Pressman and 'Software Engineering' by Addison Wesley. She advises the audience to prioritize the first book, as it aligns with the syllabus and is written in simple language.
🛠️ What is Software Engineering?
Software Engineering is explained as a combination of 'software' (a collection of integrated programs) and 'engineering' (the application of scientific knowledge for building, designing, and maintaining frameworks and processes). The aim is to develop reliable and effective software products using scientific principles. Examples of applications like social media, banking, and gaming software are provided to illustrate the result of Software Engineering.
📈 The Need for Software Engineering
The need for Software Engineering is discussed in terms of managing large projects, reducing costs, saving time, and ensuring reliability. Software helps organizations handle vast amounts of data, manage costs efficiently, reduce time through automation (e.g., reservation systems), and deliver reliable software as per client requirements.
⚙️ Characteristics of Good Software
Good software is categorized into three main areas: operational (e.g., budget-friendly, efficient, and dependable like WhatsApp), transitional (e.g., portability, reusability), and maintenance (e.g., flexibility and scalability). Developers must adhere to these characteristics to create software that is functional, secure, and adaptable.
🖥️ Types of Software: System, Application, and Engineering
The types of software are divided into different categories: system software (operating systems like Windows and Android), application software (specific user or business tasks like WhatsApp or Flipkart), and engineering and scientific software (handling real-time data, weather prediction, stock market analysis).
🔌 Embedded Software and Web Applications
Embedded software is explained as programs that control features within hardware, such as switches in routers or features in digital cameras. Web applications, like Gmail or online converters, are client-server programs that deliver information and services through hypertext and limited graphics.
🤖 Artificial Intelligence Software
Artificial intelligence software uses algorithms like machine learning and deep learning to solve complex problems. Examples include Google Cloud, TensorFlow, and Azure Studio, used by companies for data management, AI gaming, robotics, and expert systems.
🔄 Software Process Overview
The software process consists of four main parts: specification (gathering requirements), development (creating the software), validation (testing to ensure the software meets requirements), and evolution (updating the software to meet changing client needs). These steps are crucial for producing a high-quality product.
📊 Software Development Life Cycle (SDLC) Models
The Software Development Life Cycle (SDLC) includes various models used by developers, such as the waterfall model, RAD model, spiral model, V-model, incremental model, agile model, and big bang model. Vishali concludes by stating that these models will be discussed in detail in upcoming sessions.
Mindmap
Keywords
💡Software Engineering
💡Need of Software Engineering
💡Characteristics of Good Software
💡System Software
💡Application Software
💡Software Process
💡STLC Models
💡Reliable Software
💡Artificial Intelligence Software
💡Maintenance of Software
Highlights
Introduction to software engineering, including its definition and importance in developing reliable software products.
Software engineering combines software development and engineering principles to create effective and reliable software.
Key need for software engineering includes handling large projects, managing costs, reducing time, and creating reliable software.
Characteristics of good software are divided into operational, transitional, and maintenance categories, using WhatsApp as an example.
Operational characteristics of good software include budget efficiency, usability, dependability, correctness, and safety.
Transitional characteristics include interoperability, reusability, portability, with Turbo C software as an example for portability.
Maintenance characteristics include flexibility, maintainability, modularity, and scalability, demonstrating the importance of software updates.
Different types of software include system software, application software, engineering/scientific software, embedded software, web applications, and AI software.
System software provides a platform for other applications, like Android operating systems enabling apps like WhatsApp.
Application software is developed for specific tasks, such as shopping apps like Flipkart or communication apps like WhatsApp.
Engineering and scientific software handle real-time data, such as weather prediction and stock market analysis.
Embedded software controls features and functions of hardware, with examples like digital cameras and washing machines.
Web application software includes client-server programs, such as Gmail, and online tools for file conversion and photo editing.
AI software uses non-numerical algorithms for complex problem-solving, used in areas like robotics, pattern recognition, and gaming.
The software process includes specification, development, validation, and evolution to meet changing client needs, ensuring software remains flexible and scalable.
Transcripts
good evening everyone this is vishali
from today's session
I will start a software engineering
subject in this series I will give you a
complete pointwise easy and quick
explanation about each and every points
included in software engineering subject
in today's session we will discuss about
the first point that is Introduction to
software engineering so let's start the
session
in this channel you got a complete
pointwise easy explanation practical
demo and question Bank of following
subjects here I am also giving you some
exam interview preparation tips plus pro
project presentation and some free
certification ideas please like and
share these videos with your friends and
subscribe the channel so you will get a
notification regarding my new upcoming
videos
now in today's session we will discuss
about introduction of software
engineering their need then
characteristics of good software nature
of software software process and stlc
models next
now first there is a reference book I am
suggesting you for software engineering
subject purpose you can refer this first
book that is Roger Pressman software
engineering a practitioner approach book
the second book is software engineering
by Addison Wesley but I am suggesting
you you should refer this first book
because everything mentioned in this
book in simple language or as per your
syllabus points next
now the first point is what exactly
software engineering basically software
engineering these words are combined
from software and Engineering what
exactly software we know that software
is a collection of integrated programs
means developer develop a particular
software by using a particular computer
programming language right as per the
customer need
the second thing is engineering
engineering means here we apply
different scientific and practical
knowledge or we will learn about
invention design build maintenance and
improve framework and process this is
the engineering field right so by
combining software and Engineering
software engineering will be developed
what exactly software engineering so
software engineering is a engineering
Branch here we develop evaluation of
software product
by using some scientific principles
techniques and procedures this is called
a software engineering
the result of software engineering is to
develop effective and Reliable Software
product in our daily life we use
different types of applications like
social applications banking applications
then gaming applications right so these
are all these softwares so this
softwares have developed by the
particular developer by using a
particular principles techniques and
procedure so this all things have
included in software engineering subject
clear next
now the next point is need of software
engineering the first need is to
handling big project see every
organization every Institute having
their own software right some banking
application like SBI RBI they have their
own software so basically software can
be used to handle large amount of data
and large amount of project there is a
connection between the customers and The
Institute persons right the second thing
is to manage cost
if you develop a particular software as
per the software engineering principles
or as per the customer requirement so
your software is very easy to manage the
cost means if you develop a software as
per the customer need at that time
reduce all those things that are not
required only as per the customer
requirements so that will be beneficial
for to manage the cost
second to decrease time
obviously we use different software like
reservation application train
reservation booking Airline bookings
then a calculator so this all
applications are useful for the human or
the users it save lot of time right so
if you develop a software by using some
specific software engineering techniques
it save lot of time of the particular
users
the next one is Reliable Software so
Reliable Software means the softwares
have developed by the particular company
or particular organization right so it's
company responsibility to deliver a
software product on particular time or
particular schedule as discussed by the
customer
so this is called as Reliable Software
the next one is Effectiveness obviously
every software you have developed they
have a accuracy then a easy to use that
will be usable for every user as per
their need so this is called as
Effectiveness right
so these are the need of software
engineering that's why we use softwares
in our daily life for each and every
purpose like in our College purpose or
any other browsing purpose there are
some browsers there are some gaming
applications then a shopping
applications like Flipkart Amazon then
uh social applications WhatsApp Facebook
Instagram right so each and everywhere
we use applications we use softwares
right so this is a need of software
engineering next
now the next thing is characteristics of
good software see this characteristics
are divided into the three parts
operational transitional and maintenance
these are the three main characteristics
of good software let's take the example
of WhatsApp
so operational is budget WhatsApp is
budget friendly for every user right
there is a efficiency they work
efficiently their each and every
applications like chatting video calling
then a status each and every application
work efficiently then usability means
each and every user use this application
whether it is literate person or
non-literate person next dependability
WhatsApp use contact application means
they depend on any other application or
user also depend on that particular
software next correctness functionality
there are different functionalities the
main thing is Safety and Security so
this all things have included in
particular software applications so
these are the characteristics of good
software as per the operational as per
their working areas
second thing is Transitional
transitional include interoperability
their operations reusability portability
let's take an example of your turbo C
software that is programming software so
you can install turbo C in different
versions of Windows like Windows 7
Windows 8 so this is called as
portability then adaptability
the second thing is maintenance in
maintenance it include flexibility
maintainability modularity and
scalability means there are different
versions have included in particular
softwares each time you update the
softwares as per their new features
right so these all are the
characteristics of good softwares Miss
every software engineer every software
developer must know these
characteristics or as per that
characteristics they develop a
software's clear next
now next thing is nature of softwares
there are different softwares have
present so that will be divided into the
different natures
the first is system softwares system
software basically means your operating
system you can use different operating
systems like Windows Linux then in your
mobile there is Android operating system
right so these all are the system
software
basically system software is an
interaction between harder and
application software
means it provide a platform to the
application software like see here in
your mobile there is Android operating
system that is system software and on
that Android operating system you
install different application like you
install WhatsApp you install Facebook
right so these are the application
softwares basically system software is
provide a platform to all the other
application softwares clear
next is application softwares
application software basically means
that will be developed as per the
specific task or as per the user need
for example there are some shopping
applications like Flipkart so that will
be useful only for shopping as per the
customer need next what's up WhatsApp is
just used for connecting and chatting
purpose next gaming application next up
banking application so this all are
applications or softwares have developed
as per the user or business need right
so this is called AS application
softwares next
the third nature of software is
engineering and scientific softwares so
basically this softwares handle all the
real-time data and it has very high
accuracy complex formula Evolution and
data analysis so real-time data means
weather prediction there are some app
which show whether prediction related
data some stock market analysis like
these are the real-time application
their values are continuously changed
right then a stress analysis then body
measurement app there are working
applications or fit applications Google
Fit is there right so these all are the
engineering scientific softwares which
handle real time and continuous data
clear
the next one is embedded software so
basically embedded softwares are used to
implement and control feature and
functions for the end users means this
embedded softwares are reside within the
software for example switch router we
use these components for developing a
particular application like this
particular things have included in
digital camera washing machine then
traffic control means where all the
hardware related things are included
into the embedded softwares clear next
the next is web application softwares we
all are familiar with this it is a
client server computer programs we all
use some online forms we use Gmail Yahoo
and there are some online websites which
convert your file word to PDF PDF to
Word then online some photo editing
websites is there right so all the
online application where you can use
some online websites
so this is called as web application
softwares in this web application
software there are some set of Link or
some hypertext file which present all
the information by using text and
limited Graphics okay so this is called
as web application softwares
the next one is artificial intelligence
softwares so basically all the
artificial intelligence software use
by non-numerical algorithms there are
different machine learning artificial
intelligence deep learning algorithms to
solve a complex problems for example
there are Google Cloud then Azure Studio
tensorflow sells Force these are the
some applications have available that
will be used by the particular
organization or particular company to
handle large amount of data so generally
artificial intelligence software's
applications are included in robotics
expert system then some patent
recognization then artificial neural
network and some there are some AI
gaming is there right so these all are
the artificial intelligence softwares
next
now the next thing is software process
what exactly software process software
process means it is a some set of
activities and their outcome is to
produce a good software product
so basically this software process have
divided into the fourth part software
specification software development
software validation and software
Evolution this all process are handled
by software engineer or developer
the first thing is software
specification it means that you need to
develop a software as per the customer
requirements or as per the user need so
you develop a software's first you need
to prepare a plan first you need to
maintain which type of functionalities
have included into your software which
type of features is there which type of
programming language or database you
should use in the particular software so
all these analysis are included into the
software specification
the second thing is software development
here you need to develop a software as
per the customer requirement okay means
there is a actual development you should
use or develop a software by using
particular programming language
next one is software validation Miss
after development you need to validate
the software means you need to test the
software apply some software testings
rules and to test the software whether
the particular software will develop as
per the customer requirements or not and
if there are any errors you need to
solve those errors that will be done by
the tester clear and last one is a
software Evolution means suppose client
requirement have changed so your
software must involve to meet changing
client needs okay there is a flexibility
or scalability in your applications
clear so software specification
development validation and evaluation
these are the main software process next
now the next one is software engineering
stlc models stlc means software
development life cycle models so there
are different models have included in
software engineering this all models
have used by the developer to develop a
particular product or softwares the
first one is waterfall model then rad
model spiral model V model incremental
model agile model iterative model and
big Bank model so we discuss all these
models in detail in our next sessions
there are some models have included in
your syllabus also
so we will discuss in detail in next
sessions
so this is all about introduction about
software engineering thank you keep
learning
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