ISRO (Indian Space Research Organization) Interview Question: .What is verification and val... | Glassdoor

Interview Question

Project Engineering Interview Bengaluru (India)

.What is verification and validation etc.


Interview Answer

1 Answer


alidation checks that the product design satisfies or fits the intended usage (high-level checking), i.e. the software meets the user requirement. This is done through dynamic testing and other forms of review.
According to the Capability Maturity Model (CMMI-SW v1.1),
Verification: The process of evaluating software to determine whether the products of a given development phase satisfy the conditions imposed at the start of that phase. [IEEE-STD-610].
Validation: The process of evaluating software during or at the end of the development process to determine whether it satisfies specified requirements. [IEEE-STD-610]
In other words, validation ensures that the product actually meets the user's needs, and that the specifications were correct in the first place, while verification is ensuring that the product has been built according to the requirements and design specifications. Validation ensures that "you built the right thing". Verification ensures that "you built it right". Validation confirms that the product, as provided, will fulfill its intended use.

Interview Candidate on Jun 12, 2012

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