V-Model: Advantages, Disadvantages, Usage

According to ISTQB Exam Certification:

Advantages of V-Model are:

• Easy to use
• Simple to use
• Testing activities like planning, test designing happens well before coding.
• Time saving, quick
• Hence higher chance of success over the waterfall model
• Proactive defect tracking – that is defects are found at early stage
• Avoids the downward flow of the defects
• Works well for small projects where requirements are easily understood

Disadvantages of V-Model are:

• Very rigid
• Least flexible
• Software is developed during the implementation phase, so no early prototypes of the software are produced
• If any changes happen in midway, then the test documents along with requirement documents has to be updated
• Risky

Use V-Model when:

• Small to medium sized projects where requirements are clearly defined and fixed.
• Sample technical resources are available with needed technical expertise.

High confidence of customer is required for choosing the V-Shaped model approach.

Referencies:

http://istqbexamcertification.com/what-is-v-model-advantages-disadvantages-and-when-to-use-it/

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