Software Development Life Cycle


SDLC is a process followed for a software project, within a software organization. It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software. The life cycle defines a methodology for improving the quality of software and the overall development process.
A typical Software Development Life Cycle consists of the following stages −
Stage 1: Planning and Requirement Analysis
Stage 2: Defining Requirements
Stage 3: Designing the Product Architecture
Stage 4: Building or Developing the Product
Stage 5: Testing the Product
Stage 6: Deployment in the Market and Maintenance
The Software Development Life Cycle (SDLC) refers to the process followed by software development teams to design, develop, test, and deploy software applications. It typically consists of several phases, including:

  1. Planning: This initial phase involves defining project scope, goals, timelines, and resource requirements. It also involves gathering requirements from stakeholders and creating a project plan.
  2. Analysis: In this phase, the requirements gathered in the planning stage are analyzed in detail. This involves breaking down requirements into smaller, manageable components and ensuring they align with the project's objectives.
  3. Design: During the design phase, developers create a blueprint for the software based on the requirements and analysis conducted earlier. This includes architectural design, database design, user interface design, and more.
  4. Implementation: Also known as the coding phase, this is where developers write the code for the software based on the design specifications. It involves translating the design into actual programming code using programming languages and frameworks.
  5. Testing: In the testing phase, the software is rigorously tested to identify and fix defects or bugs. This includes various types of testing such as unit testing, integration testing, system testing, and acceptance testing to ensure the software meets quality standards and fulfills the requirements.
  6. Deployment: Once the software has been thoroughly tested and approved, it is deployed to the production environment or made available to end-users. This involves deploying the code, configuring servers, and ensuring all necessary resources are in place for the software to function properly.
  7. Maintenance: After deployment, the software enters the maintenance phase where it is regularly updated, patched, and enhanced to address any issues that may arise and to incorporate new features or changes requested by users.
These phases may vary slightly depending on the specific methodology or approach used, such as Waterfall, Agile, or DevOps, but the core principles of the SDLC remain consistent across different development processes.

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