The terms "verification" and "validation" are very often used in the technical literature and are associated with the analysis of the quality of any software. In the scientific literature you can find various interpretations of these concepts. So, let's try to understand this issue.
The most correct, from our point of view, is the following definition. Validation and verification are activities that are aimed at conducting quality control of a software product in order to detect errors in it in the early stages. It would seem that they have a common goal. But still, these species have differences in the sources of the tested properties, restrictions and rules, the non-observance of which may be considered a mistake.
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