The V-process life cycle model is used for projects involving application development, re-engineering or major enhancements.

The V Process Model is a superior alternative to the waterfall model, created with the aim of improving the efficiency and effectiveness of software development. This model was defined to address the drawback of the traditional waterfall model, which considered testing a single phase to be taken up after most of the mainline development activities are completed. The V Process Model integrates Verification and Validation activities throughout the software lifecycle. These Verification and Validation activities help in discovery and correction of defects in an application and in assessing if the application is ready for operational use.