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SDLC%20Interview%20Questions%20and%20Answers

Question: What are the different phases in SDLC?
Answer:

SDLC, or Software Development Life Cycle, refers to the process of developing software from initial conception to deployment and maintenance. The SDLC consists of several distinct phases, each with its own set of activities, deliverables, and objectives. The typical phases in the SDLC are as follows:

  1. Requirements Gathering: In this phase, stakeholders collaborate to gather and document the software requirements. This involves understanding the needs of users, identifying features, and defining project goals.

  2. Analysis: During this phase, the gathered requirements are analyzed in detail. This includes identifying potential challenges, defining scope, and creating prototypes or mockups to visualize the final product.

  3. Design: In the design phase, the overall architecture of the software system is developed. This includes designing system architecture, database structure, user interface layout, and defining data flow.

  4. Implementation (Coding): In this phase, the actual coding of the software system takes place based on the design specifications. Developers write, test, and debug code to implement the features and functionality defined in earlier stages.

  5. Testing: The testing phase involves verifying that the software meets the specified requirements and functions correctly. This includes unit testing, integration testing, system testing, and user acceptance testing to ensure quality and reliability.

  6. Deployment: Once the software has been thoroughly tested and approved, it is deployed to the production environment. This involves installing the software on end-user systems or servers and configuring it for use.

  7. Maintenance: The maintenance phase involves ongoing support and maintenance of the software. This includes fixing bugs, addressing user feedback, implementing updates and enhancements, and ensuring the continued reliability and performance of the software.

These phases are often depicted as a linear sequence, but in practice, they may overlap or iterate depending on the specific project methodology used (e.g., Waterfall, Agile, Spiral, etc.) and project requirements. Each phase is essential for ensuring the successful development, deployment, and maintenance of software systems.

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