There are several effective methods of software testing that can be employed to ensure the quality and reliability of software. Here are some widely used methods:

Unit Testing: This method involves testing individual components or units of code to verify their functionality in isolation. It is usually performed by developers and focuses on testing small units of code, such as functions or methods.

Integration Testing: Integration testing aims to test the interaction between different components or modules of a software system. It verifies that the integrated components work correctly together and catch any issues arising from their interactions.

System Testing: System testing involves testing the entire system as a whole to ensure that it meets the specified requirements. It focuses on testing the behavior and functionality of the complete software system in different environments and scenarios.