Software Testing - Software Development Life Cycle (SDLC

The Software Development Life Cycle begins with the requirement analysis phase, where the actual needs of the business and users are identified. In this stage, discussions are conducted with stakeholders to understand what the software should achieve. The focus is on gathering clear, complete, and realistic requirements. Proper requirement analysis helps avoid confusion later and forms a strong foundation for all remaining development activities.

Design Phase

After requirements are finalized, the design phase translates them into a technical structure. This phase defines how the system will be built, including architecture, data flow, and component interaction. Design decisions play a major role in system performance and scalability. A well-planned design ensures that developers can implement features effectively without major rework.

Development and Implementation Phase

In this phase, developers start writing code based on the approved design. Each module or feature is implemented following coding standards and technical guidelines. Developers may test individual components while coding to ensure correctness. This stage transforms theoretical plans into a working software product.

Testing Phase

Once development is complete, the software enters the testing phase. Here, the system is evaluated to verify that it meets the defined requirements and functions correctly. Testing helps identify defects, performance issues, and functional gaps before the software is released. This phase ensures that the product is stable and reliable for users.

Deployment and Maintenance Phase

After successful testing, the software is deployed to the production environment. Maintenance begins after deployment and continues throughout the software’s life. This phase includes fixing defects, improving performance, and adding enhancements based on user feedback. Maintenance ensures that the software remains useful and up to date over time.