Software Development Life cycle
Summary
TLDRThis video delves into the Software Development Lifecycle (SDLC), explaining its importance and stages. It emphasizes that without following SDLC, companies risk not understanding project requirements, investment needs, and potential profits or losses. The script outlines the roles of various team members, from business analysts to developers, detailing the stages from requirement collection to maintenance. It uses examples like constructing a house to illustrate high and low-level design, and discusses the importance of testing and implementation. The video aims to clarify the SDLC process in an accessible manner, encouraging viewers to engage with the content.
Takeaways
- π The Software Development Lifecycle (SDLC) is a structured process that software development goes through, from inception to maintenance.
- π¨βπΌ Requirement collection is the first stage of SDLC, where a product analyst or business analyst gathers requirements from customers.
- πΌ The feasibility study is a critical phase where the decision to proceed with the project is made, considering resources, lab setups, and technology.
- π οΈ The design phase is divided into high-level and low-level design, focusing on the architecture of the application and detailed component layouts.
- ποΈ High-level design is like planning the structure of a house, while low-level design is akin to detailing each room's layout and features.
- π» Coding is the phase where developers write the actual code for the software, following the guidelines set by the low-level design.
- π¬ Testing is an essential phase where the software is rigorously tested to ensure it meets the requirements and functions correctly.
- π Installation and implementation involve deploying the software at the customer's site and ensuring it's ready for use.
- π§ Maintenance is the final phase of SDLC, where developers and QA engineers provide support and address any issues post-deployment.
- π Service Level Agreements (SLAs) define the maintenance period, typically for six months or a year, during which support is provided to the customer.
Q & A
What is the purpose of the Software Development Lifecycle (SDLC)?
-The purpose of SDLC is to provide a step-by-step procedure or standard procedure for developing new software, ensuring that the software meets the requirements, is cost-effective, and is profitable for the company.
Why should a company follow the SDLC?
-A company should follow the SDLC to understand the requirements, estimate the investment needed, predict the profit or loss, and determine the resources required for the development of the software.
What are the roles of a Product Analyst and a Business Analyst in the SDLC?
-A Product Analyst works in product-based companies to define the product requirements, while a Business Analyst collects requirements from the customer, translates them into business language, and then communicates these requirements to the technical team.
What is the significance of the Feasibility Study in the SDLC?
-The Feasibility Study is crucial as it helps in deciding whether to take up the project or not, based on factors like resource availability, lab setup, and the technology required for the project.
Who are the key stakeholders involved in the Feasibility Study phase of SDLC?
-The key stakeholders involved in the Feasibility Study phase include the Product Manager, Finance Team, HR, Architects, and Business Analysts.
What is the role of a Product Manager in the SDLC?
-The Product Manager takes data from the Business Analyst and other stakeholders, synthesizes it, and makes decisions regarding the project's direction, including whether to proceed with the project.
What are the two types of design stages in the SDLC?
-The two types of design stages in the SDLC are High-Level Design, which defines the architecture of the application, and Low-Level Design, which details how each component of the application will look like.
Can you provide an example of High-Level Design?
-An example of High-Level Design could be planning the layout of a house, deciding on the number of rooms, the location of the kitchen, and the placement of common areas.
What is the main activity performed during the Coding phase of SDLC?
-During the Coding phase, developers start writing the code for the software based on the Low-Level Design documents and the requirements gathered by the Business Analyst.
What happens during the Testing phase of the SDLC?
-In the Testing phase, the software is rigorously tested to ensure it works as intended. This is done by the QA team, who act as a bridge between the developers and the end-users.
What is the purpose of the Installation and Implementation phase in SDLC?
-The purpose of the Installation and Implementation phase is to deploy the software at the customer's location, ensuring it is set up correctly and the customer can start using it for their business operations.
What does the Maintenance phase of SDLC involve?
-The Maintenance phase involves ongoing support and updates to the software after it has been delivered to the customer. This includes fixing defects, making improvements, and handling any issues that arise during the agreed service level agreement period.
Outlines
π Introduction to Software Development Lifecycle (SDLC)
This paragraph introduces the concept of the Software Development Lifecycle (SDLC), emphasizing its importance in the systematic development of software. It explains that SDLC is a structured process involving various stages that a company must follow to understand requirements, estimate costs, predict profits or losses, and determine the resources needed. The paragraph also highlights the roles of different professionals such as product analysts, business analysts, architects, developers, product managers, and QA engineers in the initial stage of requirement collection and analysis.
π οΈ SDLC Stages: Feasibility Study and Design
The second paragraph delves into the specifics of the SDLC, focusing on the feasibility study and design stages. It describes how a project's viability is determined by considering resources, lab setups, and technological capabilities. The roles of the product manager, finance team, HR, architects, and business analysts in making the 'go or no-go' decision for a project are also discussed. The design phase is then broken down into high-level and low-level design, with examples provided to illustrate the difference between the two. High-level design refers to the overall architecture, while low-level design pertains to the detailed functionality of each component.
π§ Implementation and Maintenance in SDLC
The final paragraph covers the latter stages of the SDLC, including coding, testing, installation and implementation, and maintenance. It explains that after the design phase, developers begin coding based on the low-level design documents. The business analyst acts as a bridge between the customer and developers. Once coding is complete, the software undergoes testing, followed by installation and implementation at the customer's site. The paragraph concludes with a discussion on the maintenance phase, where developers and QA engineers provide ongoing support and updates as per the service level agreement with the customer. Any modifications requested after the agreement period would require additional payment.
Mindmap
Keywords
π‘Software Development Lifecycle (SDLC)
π‘Requirement Collection
π‘Product Manager
π‘Business Analyst
π‘Feasibility Study
π‘Design
π‘Architect
π‘Coding
π‘Testing
π‘Implementation
π‘Maintenance
Highlights
Introduction to the Software Development Lifecycle (SDLC) and its importance in the development process.
Explanation of the term 'Software Development Lifecycle' and its stages.
The necessity for companies to follow SDLC to understand requirements, investment, and potential profit or loss.
The role of a product analyst and business analyst in requirement collection.
The decision-making process in SDLC regarding whether to take up a project based on feasibility study.
Involvement of product manager, finance team, HR, architects, and business analyst in project feasibility discussions.
The importance of resources, lab setups, and technology in project acceptance decisions.
The role of a product manager in gathering data and making project decisions.
Introduction to the design phase of SDLC, including high-level and low-level design.
Examples provided to illustrate the difference between high-level and low-level design.
The transition from design to coding phase, where developers write code based on low-level design.
The role of the business analyst as a bridge between customers and developers.
The testing phase in SDLC, which follows coding to ensure software functionality.
The installation and implementation phase, where software is set up at the customer's site.
The maintenance phase as the final stage of SDLC, focusing on post-deployment support and updates.
Service level agreements and their role in defining maintenance periods and customer support.
The process of modifications and additional payments for customers post-service level agreement.
Encouragement for viewers to reach out with questions and an invitation to like, subscribe, and share the video.
Transcripts
hi guys welcome you ordered another
video of software testing by M K T so in
this video we're gonna talk about
software development lifecycle before we
start with this video make sure that you
are subscribed to my channel let's get
started so in this video we are going to
talk about what do you mean by software
development lifecycle C as the name
suggests software development life cycle
whenever software any company is
developing what are stages is it goes
through that is part of software
maintenance second actual definition
says that software development lifecycle
it is a step-by-step procedure or a
standard procedure to develop any new
software is called a socket like sector
now why company should follow SDLC
software development lifecycle or what
would happen if they don't follow SDLC
if company don't follow SDLC they will
not come to know what is the requirement
first of all they will not get to know
how much money to invest in it they will
not get to know what will be the profit
or loss at the end of the at the end and
they will not get to know how many
ingenious they need to involve in making
their software so for that purpose
company always follow software
development life cycle so if we talked
about the stages we have in software
development life cycle the stages we
have are listen the early guys the first
stage is college requirement collection
first stage is chorus requirement
connection that means there are the
question arises who do the requirement
touch requirement collection is done by
product analyst product analyst is the
person who will be in the product based
companies and business analyst is the
person who will do the requirement
collection in the service response I'm
going to take an example of
so this okay so be a business analyst he
will go to the customer piece he will
correct the requirement in the business
language he will come back to the
company convert everything he has
understood in the business language to
technical things and he gonna explain it
to the technical team technical team
consisting of architects developers
product head that is product managers
and QE q ingenious this was the first
step the second stage of SDLC is called
as easy beauty study now physically this
study is nothing but in this stage they
define rather to take up the project if
they are going to take up the project
are they going to get any profit or not
so this is the stage where they decide
whether you take up the project or not
this stage consisting of different
themes the first the first one the first
person is called as product head or
product manager the second is finance
team HRT architects and business I just
these are the people who decide whether
to take up the project or not they may
talk about three things whether they
have enough resources to take off the
project when I talked about the
resources I mean whether they have
proper engineers developers NQ it to
take up the project or not do the second
is do they have proper lab setups or not
do they have proper lab setups about I
mean if the big of the project lab
setups required
are they having it and the third is
which are they having the technology to
take up the project or not so the
designer on the screen mainly thinks
decide whether to take up the project or
not now I'm going to talk about the role
of product manager he is the person who
will take the data from business analyst
arcattack finished him and a charting
and he is the person who will decide
whether to take of the project ah ba ba
is a person who will correct the
requirement as I have already said his
role is to correct the requirement he is
going to requirement and architect is a
person who will think from the technical
point of view that means which
technology to follow to take up the
project finance team they were thing
from the money point of view if they are
going to take the project are they going
to get any profit or not if the English
dismiss or money are they going to
return anything are they going to get
properly so an attractive actually more
technical teams of people who've written
that they've got this many ingenious in
the product so it is the job of the
exciting to hire those people he will
collect product hand that is product
product manager he will take the data
from everyone and he will segment who
think of the project or not I have
explained in a very easy language third
third stage of software development
lifecycle is called as design design is
in design we have two things one is high
level design other one is low level
design high level design is a design the
architecture of the application how the
application you will look like that is
for high level design if I talk about
the lower level design how each and
every models will look like that is
called as low level design so I hope I
mean if I'm going to give you the
example imagine understand give me a
very better way let us take example that
I have come I have bought a site have
bought a site now I have decided that I
am going to construct in that I am going
to construct one room one hall one
kitchen to wash poops one lawn one
parking area this is - I mean I
these are things I'm gonna make in my
site which I have bought that is for
this high level design now what is low
level design
suppose my site is like this this is the
increase I will be having a forum here
with that attached motion will be that
with that attached living room should be
there with that attached kitchen should
be there here launched should be that
help button should be that talking
everything in detail is called as low
level design
I'm gonna give you one more example
let's talk about Watson what's up is
having an option corners select a
contact a send a message they also have
the option of attachment that is what is
I design I'm going to talk about low
level design if I click on attachment it
is having multiple options in it let us
say we having an option of selecting an
image video document.location files they
have multiple option to select so that
is furnished the only reason I'm talking
in depth that talking if if I'm talking
about any software that is talking about
the Gmail Gmail is having an option of
composing a me sent me outbox spam
logout learning that is for his high
level ISM now what is new level using
do a compose meant it will be having an
option contest to to human scent so that
will remind me lightly
BC BC subject body attachment send
button cancel button signature that is
for a strong liberal different I hope it
is very understandable right
so once the design phase is completed
the for stage in software development
lifecycle
say that coding coding has to be done
developer will start writing the code
while seeing the lower level design and
quite and I always remember business
analyst he is the bridge between the
customer and the developers so once
after the coding is done the first stage
of software development life cycle is
harnessed testing which we will be doing
it once the testing is done software is
working perfectly fine we are going to
reuse it that comes a six-page the sixth
stage is called as installation and
implementation our sighting genius site
ingenious fielding genius they will go
to the customers place install the
software make it ready so that customer
can start their running that business
with the help of the software that is
forest installation installation or
implementation yeah
coming to the seventh street that is
called as maintenance is the last page
of software development life cycle is
called as maintenance fees maintenance
is mainly done by developer and QA now
I'm going to tell you what do you mean
the maintenance phase once we have given
a Stockton to the customer there will be
service level agreement for six months
for one year that means while using the
software if customer is facing any
defect if customer is facing any problem
and you want to change it it will be
written in the service level agreement
that we will be providing our
maintenance to them for a period of six
months or one year so we will be
developing it developer will be
developing it test engineers retested
and we will give the new software to the
customer over a period of
how many bitter six on Somalia done once
after service level agreement is over if
customer wants to do any modification in
the software they have to pay and get it
so that is called a software development
lifecycle I hope it is very I have
explained in a very easy language if you
have any question please reach out to me
I have a my Jimmy rating the link
description my Cora profile in the link
description however my blog in
description and you have any questions
please reach out to me if you like this
video please like it and subscribe to
view and share the video any difference
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