What-is-SDLC (1)dddddddddddddddddddddddd.pptx

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1. What is SDLC? Understanding the Software Development Life Cycle

2. Why SDLC Matters Quality Assurance Ensures high-quality software delivered on time and within budget through structured processes Clear Direction Provides a clear roadmap for development teams, eliminating confusion and miscommunication Cost Efficiency Minimises costly errors and rework through well-defined phases and early problem detection

3. The Big Picture: SDLC Overview A systematic, step-by-step process to design, build, test, deploy, and maintain software applications effectively. Balances three critical factors: cost , time , and quality for successful project delivery. Adopted by development teams worldwide, from innovative startups to tech giants like AWS and IBM. Provides structure whilst maintaining flexibility for different project requirements and team sizes.

4. Phase 1: Planning & Requirement Analysis 01 Stakeholder Input Gather comprehensive input from customers, stakeholders, and domain experts 02 Scope Definition Define project scope, goals, and conduct thorough feasibility analysis 03 Documentation Create detailed Software Requirement Specification (SRS) document Example: Estimating resources and assessing risks before building an Identity Access Management system for enterprise clients.

5. Phase 2: Design Blueprint Creation Translate requirements into a detailed technical blueprint that guides development. Make critical decisions about: Software architecture patterns Technology stack selection Integration methods and APIs Database design and structure Review design extensively with stakeholders to identify and resolve potential issues before costly development begins.

6. Phase 3: Implementation (Development) Code Development Developers write code following the established design plan and architectural guidelines Standards & Tools Use coding standards and development tools like compilers, debuggers, and IDEs Task Management Break down complex features into manageable daily goals and sprints Example: Using Java or Python frameworks to build modular components that integrate seamlessly with existing systems.

7. Phase 4: Testing Unit Testing Test individual components and functions Integration Testing Verify modules work together properly System Testing Test complete system functionality Acceptance Testing Validate against user requirements Modern testing combines automated and manual approaches, running parallel with development to ensure software meets requirements and is bug-free before release.

8. Phase 5: Deployment & Maintenance 1 Production Deployment Deploy software to production environment without disrupting existing users or systems 2 Performance Monitoring Continuously monitor system performance, identify bottlenecks, and track user feedback 3 Ongoing Updates Fix bugs promptly and deploy new features based on user needs and market demands Real-world example: Continuous updates and improvements in applications like AWS services or enterprise software platforms.

9. SDLC Models: Waterfall vs Agile Waterfall Model Linear, sequential phases Heavy documentation focus Best for well-defined projects Limited flexibility for changes Agile Model Iterative and incremental Embraces change and collaboration Rapid delivery of working software Continuous stakeholder feedback Choosing the right model depends on project complexity, team dynamics, timeline constraints, and client requirements.

10. The Takeaway SDLC is the backbone of successful software projects — a proven framework that transforms innovative ideas into reliable, maintainable software solutions. Saves Time Structured approach prevents costly delays and rework Reduces Costs Early problem detection minimises expensive fixes Ensures Quality Systematic testing and validation guarantee reliability Embrace SDLC to build better software, faster.