Web Development Course In Jhotwara Jaipur

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1. Software Development Life Cycle (SDLC) – Complete
Guide
Introduction
The Software Development Life Cycle (SDLC) is a structured process that outlines all the
stages involved in developing software—from initial planning to deployment and maintenance.
Its main goal is to deliver high-quality software, on time, and within budget that meets or
exceeds client expectations.
By following SDLC, developers, project managers, and stakeholders can ensure an organized
and controlled approach to software creation.
Main Phases of SDLC
Typically, the SDLC consists of 7 core phases:
1. Planning
●This is the first and most crucial stage.
●The project’s goals, scope, budget, timeline, and resources are defined here.
●Stakeholders (clients, managers, developers) discuss what needs to be developed and
why.
●Example: For an e-commerce website, the planning phase decides features like user
accounts, product listings, cart functionality, payment systems, and delivery tracking.
2. Requirement Analysis
●In this stage, all functional and non-functional requirements of the software are
collected and documented.
●Business analysts work closely with clients and development teams to understand how
the system should operate.
●A Software Requirement Specification (SRS) document is created.

2. ●Example: Requirements for the e-commerce site could include product search, category
filtering, multiple payment methods, and order notifications.
3. Design
●The system’s architecture and design are prepared here.
●High-Level Design (HLD): Defines overall architecture, technology stack, and database
structure.
●Low-Level Design (LLD): Focuses on module-level design, interface layouts, and
workflows.
●Example: Deciding where the search bar will be placed, how the product database will
be structured, and what the checkout flow will look like.
4. Implementation / Coding
●This is where the actual development happens.
●Developers write code based on the chosen programming language, frameworks, and
tools.
●Tasks are usually divided into modules so that multiple developers can work
simultaneously.
●Best Practices:
○Use version control (e.g., Git)
○Follow coding standards
○Conduct regular code reviews
5. Testing
●The software is thoroughly tested to detect and fix bugs or issues.
●Types of Testing:

3. ○Unit Testing – Tests individual components
○Integration Testing – Ensures modules work together
○System Testing – Tests the entire application
○User Acceptance Testing (UAT) – Final verification by the client
●Example: Checking whether the payment gateway processes transactions correctly or
whether the login system works with valid and invalid inputs.
6. Deployment
●After successful testing, the software is deployed to the production environment (live
server).
●Deployment can be:
○Big Bang: Everything is released at once
○Phased: Released in stages to small user groups first (beta release)
●Example: Rolling out the e-commerce site to select customers before making it public.
7. Maintenance
●Once the software is live, it needs regular updates and support.
●This includes fixing new bugs, improving performance, and adding new features.
●Example: Adding a new payment method, improving search speed, or updating the user
interface.
Popular SDLC Models
Different models define how the above phases are executed:
1.Waterfall Model – Sequential steps, where each phase must be completed before
moving to the next.

4. 2.Agile Model – Development is done in small, iterative cycles with continuous client
feedback.
3.Iterative Model – A basic version is built first, then improved in cycles.
4.V-Model – Testing activities are planned alongside each development phase.
5.Spiral Model – Focuses on risk analysis and prototyping.
Benefits of SDLC
●Better Planning: Keeps the project within budget and schedule.
●High Quality: Ensures the software meets user expectations.
●Improved Communication: Enhances collaboration between team members and
clients.
●Risk Management: Detects and fixes issues early.
Challenges in SDLC
●Inaccurate requirement gathering can derail the project.
●Technology may become outdated in long projects.
●Adapting to changing client needs can be costly and time-consuming.
Conclusion
The Software Development Life Cycle is like a roadmap for building software.
When followed properly, it helps teams deliver high-quality, cost-effective, and timely software
solutions.
Choosing the right SDLC model and giving equal importance to each phase ensures project
success.

5. If you want, I can also make a visual SDLC diagram so you can quickly see all phases in one
image. That way, you’ll have a ready reference for presentations or learning.