Software testing is a process used to identify the correctness, completeness, and quality of developed computer software. It includes a set of activities conducted with the intent of finding errors in software so that it could be corrected before the product is released to the end users. It is an activity to check whether the actual results match the expected results and to ensure that the software system is defect free.
There are many software testing types like Functional Testing, Regression Testing, Performance Testing, Stress Testing, Application testing, Compatibility Testing, Usability testing.
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First of Software testing types is Functional testing. It is a type of black box testing that bases its test cases on the specifications of the software component under test. Functions are tested by feeding them input and examining the output, and internal program structure is rarely considered.
Regression testing is another software testing type. Which includes any type of software testing that seeks to uncover new software bugs, or regression, in existing functional and non functional areas of a system after changes, such as enhancements, patches or configuration changes have been made to them.
Performance testing is in general testing performed to determine how a system performs in terms of responsiveness and stability under a particular workload. It can also serve to investigate measure, validate or verify other quality attributes of the system, such as scalability, reliability and resource usage.
Stress testing is a form of testing that is used to determine the stability of a given system or entity. It involves testing beyond normal operational capacity, often to a breaking point, in order to observe the results. Stress testing may have a more specific meaning in certain industries, such as fatigue testing for materials.
Application testing deals with tests for the entire application. This is driven by the scenarios from the analysis team. Application limits and features are tested here. The application must successfully execute all scenarios before it is ready for general customer availability. After all, the scenarios are a part of the requirement document and measure success. Application testing represents the bulk of the testing done by industry.
Compatibility testing, part of software non-functional tests, is testing conducted on the application to evaluate the application’s compatibility with the computing environment.
Usability testing is a technique used in user-centered interaction design to evaluate a product by testing it on users. This can be seen as an irreplaceable usability practice, since it gives direct input on how real users use the system. This is in contrast with usability inspection methods where experts use different methods to evaluate a user interface without involving users.
So there are many of the software testing types which include a set of activities conducted with the intent of finding errors in software.