The V-Model is a software development methodology that emphasizes a structured approach to project management. It is an extension of the traditional Waterfall Model, where each phase of development is followed by a corresponding testing phase. The model is shaped like a "V," with the left side representing stages of development, such as requirements analysis and design, while the right side represents testing phases, like unit testing and system testing. In the V-Model, each development phase must be completed before moving on to the next, ensuring that requirements are met at every level. This approach helps in identifying defects early in the process, making it easier to manage changes and maintain quality throughout the project lifecycle.