Which statement is true regarding the V-model lifecycle?

The statement that the test process is integrated with the development process accurately reflects a core characteristic of the V-model lifecycle. In the V-model, each phase of development is closely associated with a corresponding testing phase, ensuring that testing activities are planned and carried out simultaneously with development activities. This integration allows for early detection of defects, facilitates validation and verification at each stage, and ultimately leads to a higher quality product.

In contrast, the other statements present different models or misconceptions about the V-model. For instance, suggesting that testing involvement starts when the code is complete misrepresents the V-model's philosophy, which encourages testing activities to begin during the requirements and design phases. The description of software being built in increments aligns more with agile or iterative development models rather than the V-model, which emphasizes working on activities in a sequential manner with defined phases. The assertion that all activities for development and test are completed sequentially overlooks the paradigm of testing being designed in parallel with development activities, which is fundamental to the V-model approach.