Principles of V-Model
- Large to Small: In V-Model, testing is done in a hierarchical perspective, for example, requirements identified by the project team, creating High-Level Design, and Detailed Design phases of the project. As each of these phases is completed the requirements, they are defining become more and more refined and detailed.
- Data/Process Integrity: This principle states that the successful design of any project requires the incorporation and cohesion of both data and processes. Process elements must be identified at every requirement.
- Scalability: This principle states that the V-Model concept has the flexibility to accommodate any IT project irrespective of its size, complexity, or duration.
- Cross Referencing: A direct correlation between requirements and corresponding testing activity is known as cross-referencing.
Tangible Documentation:
This principle states that every project needs to create a document. This documentation is required and applied by both the project development team and the support team. Documentation is used to maintain the application once it is available in a production environment.
Why preferred?
- It is easy to manage due to the rigidity of the model. Each phase of V-Model has specific deliverables and a review process.
- Proactive defect tracking – that is defects are found at an early stage.
SDLC V-Model – Software Engineering
The V-model is a type of SDLC model where the process executes sequentially in a V-shape. It is also known as the Verification and Validation model. It is based on the association of a testing phase for each corresponding development stage. The development of each step is directly associated with the testing phase. The next phase starts only after completion of the previous phase i.e., for each development activity, there is a testing activity corresponding to it.
Table of Content
- V-Model Design
- Importance of V-Model
- Principles of V-Model
- When to Use of V-Model?
- Advantages of V-Model
- Disadvantages of V-Model
- Conclusion
The V-Model is a software development life cycle (SDLC) model that provides a systematic and visual representation of the software development process. It is based on the idea of a “V” shape, with the two legs of the “V” representing the progression of the software development process from requirements gathering and analysis to design, implementation, testing, and maintenance.