The Software Development Lifecycle (SDLC) is a structured process used by the software industry to design, develop, and test high-quality software. The SDLC aims to produce software that meets or exceeds customer expectations, reaches completion within times and cost estimates, and is efficient and of high quality.
Here are the primary phases of the SDLC:
1. Planning: This is the initial phase where the project goals, scope, and purpose are defined. Risks, resource allocation, budget, and timelines are also considered during this stage.
2. Requirement Analysis: Gathering the business requirements and understanding the exact needs of the client. This phase often involves creating detailed functional and technical specifications that guide future development.
3. Design: In this phase, the software’s architecture is designed. It involves creating system designs and software development plans. Software architects and developers will outline how each module will work and how they interact with each other.
4. Implementation (or Coding): This is the phase where the actual code is written based on the design specifications. Developers work on building individual modules or components that will later integrate to form the final software application.
5. Testing: During this phase, the developed software is rigorously tested to find and fix any bugs or issues. The goal is to ensure the software meets the requirements and is free of defects.
6. Deployment: After successful testing, the software is deployed to the production environment where it will be used by the end users. This phase might also include the software installation and activation.
7. Maintenance: Once the software is deployed, the maintenance phase begins. This involves fixing any issues that arise, making updates, and ensuring the software continues to function as required.
By following these phases, the SDLC ensures a systematic and disciplined approach to software development, which helps achieve high-quality software products.
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