What is SDLC?
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About 
DUevstrsingx technologies is a  software development company. 
provides  software development services in India. Our headquarter is 
located in  Noida, & another branch is in DE, USA. We started our 
journey in 2014, Now  we have 200+ quality & certified engineers 
team to test & develop your  product. Our services will help to reduce 
the cost and reduce the capital  investment at the outset.
www.devstringx.com
What is 
SDLC?
SDLC is a process followed for a software project, within a  
software organization. It consists of a detailed plan describing  
how to develop, maintain, replace and alter or enhance 
specific  software. The life cycle defines a methodology for 
improving the  quality of software and the overall 
development process.
How was the SDLC 
created?
In the 1950s and 1960s, computer science progressed rapidly. This swift 
evolution  sparked the beginnings of a production framework that eventually 
grew into the
SDLC we know today.
Prior to the 1950s, computing was not elaborate enough to necessitate a 
detailed  approach like the SDLC. As the complexity and scale of programming 
grew, the  concept of structured programming emerged. Over time, structured 
programming  demanded more tactical development models, thus sparking the 
beginnings of the  SDLC.
A typical Software Development 
Life  Cycle consists of the following 
stages
Stage 1: Planning and Requirement 
Analysis  Stage 2: Defining Requirements
Stage 3: Designing the Product 
Architecture  Stage 4: Building or 
Developing the Product  Stage 5: Testing 
the Product
Stage 6: Deployment in the Market and 
Maintenance
Planning and Requirement 
Analysis
Requirement analysis is the most important and fundamental stage in SDLC. It is 
performed  by the senior members of the team with inputs from the customer, the sales 
department,  market surveys and domain experts in the industry. This information is then 
used to plan the  basic project approach and to conduct product feasibility study in the 
economical,  operational and technical areas.
Planning for the quality assurance requirements and identification of the risks 
associated  with the project is also done in the planning stage. The outcome of the 
technical feasibility  study is to define the various technical approaches that can be 
followed to implement the  project successfully with minimum risks.
Defining 
Requirements
Once the requirement analysis is done the next step is to clearly define and  
document the product requirements and get them approved from the 
customer  or the market analysts. This is done through an SRS (Software 
Requirement  Specification) document which consists of all the product 
requirements to be  designed and developed during the project life cycle.
Designing the Product 
Architecture
SRS is the reference for product architects to come out with the best architecture 
for  the product to be developed. Based on the requirements specified in SRS, 
usually  more than one design approach for the product architecture is proposed 
and
documented in a DDS - Design Document Specification.
This DDS is reviewed by all the important stakeholders and based on various
parameters as risk assessment, product robustness, design modularity, budget 
and  time constraints, the best design approach is selected for the product.
Building or Developing the 
Product
In this stage of SDLC the actual development starts and the product is built. 
The  programming code is generated as per DDS during this stage. If the 
design is
performed in a detailed and organized manner, code generation can 
be  accomplished without much hassle.
Testing the Product
This stage is usually a subset of all the stages as in the modern SDLC models, 
the  testing activities are mostly involved in all the stages of SDLC. However, 
this stage  refers to the testing only stage of the product where product defects 
are reported,  tracked, fixed and retested, until the product reaches the quality 
standards
defined in the SRS.
Deployment in the Market and 
Maintenance
Once the product is tested and ready to be deployed it is released formally 
in  the appropriate market. Sometimes product deployment happens in 
stages as  per the business strategy of that organization. The product may 
first be  released in a limited segment and tested in the real business 
environment  (UAT- User acceptance testing).
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