Software testing

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Software testing is the act of checking whether software meets its intended objectives and satisfies expectations. Software testing can provide objective, independent information about the quality of software and the risk of its failure to a user or sponsor or any other stakeholder. Software testing can determine the correctness of software for specific scenarios but cannot determine correctness for all scenarios. It cannot find all bugs. Based on the criteria for measuring correctness from an oracle, software testing employs principles and mechanisms that might recognize a problem. Examples of oracles include specifications, contracts, comparable products, past versions of the same product, inferences about intended or expected purpose, user or customer expectations, relevant standards, and applicable laws. Software testing can be functional or non-functional in nature. Software testing is often dynamic in nature: running the software to verify actual output matches expected. It can also...

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