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Software testing is any activity aimed at evaluating an attribute or capability of a program or system and determining that it meets its required results. Use this tag on questions that talk about the testing of systems or software that would be on-topic for this site.

Before posting a question about Software Quality Assurance and testing, consider if it would be more appropriate on Software Quality Assurance Stack Exchange.

From Wikipedia:

Software testing is an investigation conducted to provide developers and stakeholders with information about the quality of the product or service under test. Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation.

Further Reading