The V-Model is a linear methodology used during a system development life cycle (SDLC). This method primarily adheres to a strict, step-by-step process—similar to a waterfall methodology.
Although it begins with broad design phases, the V-Model leads to more granular stages as it goes through the cycle. These steps then lead to application and coding before turning back to all testing stages and progressing to the completion of the project.
In this blog, we’ll take a closer look at the V-Model and why it may or may not be suitable for your project.
The V-Model Process
Similar to an ordinary waterfall model, the V-Model lays down a series of linear phases that are required to take place across the system development life cycle one at a time until completion.
For this reason, the V-Model is not recognized as an agile development method.
Understanding all the model’s details can be a challenge for everyone in the development team, since there are many stages to be accomplished, especially for the end-users and clients.
When to Use the V-Model
The V-Model is suitable for small to medium-sized projects where requirements are fixed and well-defined. It’s a practical choice if sufficient technical resources with ample technical expertise are available.
If you’re considering the V-Model for your project, there should be a high level of confidence from your customer. This model produces no prototypes, so there’s a significantly high risk involved when it comes to meeting client expectations.
The V-Model’s rigorous nature and linear design make it a popular choice for those in the medical industry. In scenarios where the project scope and length are well-defined, documentations are clear, and the technology is stable, the V-Model is the perfect method to use.
In the same vein, the V-Model also works excellently for projects that need to meet important milestone dates and maintain a strict schedule. The team can understand all stages without any problems, so creating a timeline for the whole system development life cycle can be executed effortlessly. System development teams can also generate milestones for every stage along the way.
Just like the issues affecting the traditional waterfall method where the V-Model is based, one of the problems with the V-Model is its failure in adapting to changes during the system development life cycle.
Related Content: A Detailed List of the System Development Life Cycle Phases
Its linear structure doesn’t allow project changes once the development kicks off. Therefore, it’s not ideal for projects that are expected to come up with multiple versions or regular patches/updates.
V-Model: Is it the Right System Development Life Cycle Method for You?
When selecting the most ideal system development life cycle, project’s specific requirements is the first step. The advantage of choosing the V-Model is that it’s easy to apply and understand. This method’s simplicity also makes managing a breeze.
However, it’s worth noting that it’s not flexible enough to changes in case you need to alter some requirements. In today’s dynamic world, change is inevitable—and applying these changes when using the V-Model can be very expensive for your team.