What is the primary focus of functional testing?

The primary focus of functional testing is on specification compliance, which means verifying that the software behaves according to the defined requirements and specifications. This type of testing involves checking each function of the software application by providing appropriate input and examining the output against the expected results.

Functional testing ensures that all features of the application are working as intended and that the system fulfills the necessary business requirements. It includes testing aspects like user interfaces, APIs, databases, security features, and overall system behavior in terms of functionality, rather than performance or non-functional aspects.

While performance analysis, user experience, and security vulnerabilities are important considerations in software development, they fall under different testing categories. Performance testing evaluates how the system performs under certain conditions, user experience testing focuses on how users interact with the application, and security testing identifies vulnerabilities that could be exploited. In contrast, functional testing is strictly aimed at confirming that specific functionalities are implemented correctly and meet the specified criteria.