Software Development Lifecycle (SDLC) Explained

Introduction

• Adam: Aspiring entrepreneur interested in hosting an online store for home decor products.
• Requires a software application for customers to browse and buy online.
• Mark: Adam's cousin and software developer, helps explain the SDLC.

SDLC Phases Overview

• Planning Requirements Phase
• Requirement Analysis Phase
• Design Phase
• Implementation Phase (Coding)
• Testing Phase
• Deployment and Maintenance Phase

1. Planning Requirements Phase

• Discussion between client and development team about basic requirements.
• Purpose of the application, end-users details, key elements, format, attributes, overall UI design.

2. Requirement Analysis Phase

• Detailed discussion of each design element.
• Validation of element installation, security protocols, risk analysis.
• Documented in the Software Requirements Specification (SRS) Document.

3. Design Phase

• Devising system design as per SRS document.
• Defines overall software architecture, checks feasibility.
• Documented in the Design Document Specification (DDS).
• Shared with analysts and stakeholders for review.

4. Implementation Phase (Coding)

• Developers write code using chosen languages.
• Follows predefined guidelines and uses tools like compilers and debuggers.

5. Testing Phase

• Software deployed in test environments for function checks.
• Quality assurance and testing team identify bugs/errors.
• Debugging process continues until software is stable.

6. Deployment and Maintenance Phase

• Post-testing, software ready for consumer use.
• Development team sets up application links for accessibility.
• Addressing user-reported errors and bugs.
• Includes releasing updates and enhancements.

Key Takeaways

• Adam learns about the comprehensive effort in software development.
• He can now actively contribute feedback to design the best application.

Question for Viewers

• What does the Design Document Specification (DDS) include?
  • Software code
  • Details on defects and bugs
  • Software architecture details ✅
  • Software requirements
• Leave answers in the comments to win Amazon gift vouchers.

Conclusion

• Adam understands SDLC and can better collaborate on his project.
• Encouraged to give feedback and potentially expand his business.

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