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Revati S Misra

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Krishnapriya Rajeev

Krishnapriya Rajeev

12-Apr-2023

The Waterfall model is a traditional software development life cycle (SDLC) approach that involves a linear and sequential process flow. It consists of several distinct phases, with each phase dependent on the completion of the previous one. The Waterfall model is widely used in the software development industry for its simplicity and efficiency in project management. Here's a diagram that illustrates the different phases of the Waterfall model:

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The Waterfall model comprises the following phases:

  • Requirements Gathering and Analysis: This phase involves collecting and analyzing user requirements and determining the project scope. In this phase, stakeholders are identified, and requirements are gathered to create a detailed requirements document.
  • Design: In this phase, the requirements document is used to create a detailed design of the software. This involves creating a functional specification that defines how the software will work and the architecture of the system.
  • Implementation: In this phase, the actual coding of the software begins based on the design specifications. This involves writing code, testing, and debugging.
  • Testing: In this phase, the software is tested to ensure that it meets the requirements specified in the requirements document. This involves both manual and automated testing, and the objective is to find and fix any defects in the software.
  • Deployment: In this phase, the software is deployed to the production environment. This involves installing the software on the target systems, configuring it, and training users.
  • Maintenance: In this final phase, the software is monitored and maintained to ensure that it continues to meet user requirements. This involves fixing bugs, addressing performance issues, and updating the software as needed.

The Waterfall model is a linear and sequential process, where each phase depends on the completion of the previous one. Once a phase is complete, it is difficult to go back and make changes, so it is essential to get each phase right the first time. While this model is less flexible than other SDLC models, it is still widely used in projects where the requirements are well-defined and changes are unlikely.

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