Functional Testing is one of the types of Software Testing in which the system is tested against the functional requirements and specifications. Functional testing assures that the needs, expectations,s or specifications of the clients are completely satisfied by the application. Functional testing aims to examine the input and output against the functional specifications.
Function Testing of Software testing is an important phase of software development that has the objective to ensure the product fulfills all the requirements. It also assures that the software/product works properly and satisfies all functionalities. It guarantees the security and safety of the product. It helps in improving quality and ensuring functionality in a software application. These tests are typically done on a computer system or a physical product to ensure that various functionalities work as expected and that the product is safe from any security vulnerabilities.
Functional testing is an approach to designing and building software that is focused on meeting the needs of the customer. Functional software testing is a rigorous process that can identify issues with the application performance. In other words, it helps in testing the software functionality under real-world conditions. Functional test tools also help in finding security gaps and bugs in software applications. Each function is compared to the corresponding requirement to ascertain whether its output is consistent. If there are any deviations, it will report on all the functionalities and errors during the process.
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