Why validation is more difficult than verification in Software Engineering?

Validation is often considered more challenging than verification in software engineering due to several reasons.

Some of them include:

• Verification focuses on ensuring that the product is built correctly according to specifications, validation involves assessing whether the product meets the user’s actual needs and expectations.
• Validation requires a deep understanding of user requirements, and these requirements can sometimes be subjective, evolving, or not clearly articulated. Additionally, users may have diverse needs, making it challenging to create a one-size-fits-all solution.
• Validation often involves testing in real-world scenarios, where various external factors and user interactions come into play. It requires simulating user environments and behaviors, which can be complex and resource-intensive.

In summary, the complexity of understanding and addressing user needs, the subjectivity of requirements, and the challenges associated with real-world testing make validation a more intricate and demanding process compared to the more straightforward nature of verification.