In software project management, software testing, and software engineering, verification and validation (V&V) is the process of checking that a software system meets specifications and that it fulfills its intended purpose.
It may also be referred to as software quality control.
It was designed to provide data for the acquisition of acoustic-phonetic knowledge and to support the development and evaluation of automatic speech recognition systems.
Like the Brown Corpus, which displays a balanced selection of text genres and sources, TIMIT includes a balanced selection of dialects, speakers, and materials.
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In simple terms, software verification is: "Assuming we should build X, does our software achieve its goals without any bugs or gaps?For each of eight dialect regions, 50 male and female speakers having a range of ages and educational backgrounds each read ten carefully chosen sentences.Two sentences, read by all speakers, were designed to bring out dialect variation: The remaining sentences were chosen to be phonetically rich, involving all phones (sounds) and a comprehensive range of diphones (phone bigrams)." On the other hand, software validation is: "Was X what we should have built? " Building the right product implies creating a Requirements Specification that contains the needs and goals of the stakeholders of the software product.If such artifact is incomplete or wrong, the developers will not be able to build the product the stakeholders want.