Software Quality Assurance Questions Medium
There are typically four levels of software testing, which are:
1. Unit Testing: This is the lowest level of testing and focuses on testing individual components or units of the software. It involves testing each unit in isolation to ensure that it functions correctly and meets the specified requirements. Unit testing is usually performed by developers using techniques such as white-box testing.
2. Integration Testing: Integration testing is the next level of testing and involves testing the interaction between different units or components of the software. It aims to identify any issues or defects that may arise when the units are combined and integrated. Integration testing can be performed using techniques such as top-down or bottom-up approaches, where modules are gradually integrated and tested.
3. System Testing: System testing is conducted on the complete and integrated software system. It focuses on testing the system as a whole to ensure that it meets the specified requirements and functions correctly in different scenarios. System testing includes functional testing, performance testing, usability testing, and other types of testing to validate the system's behavior and performance.
4. Acceptance Testing: Acceptance testing is the final level of testing and is performed to determine whether the software meets the user's requirements and is ready for deployment. It involves testing the software in a real-world environment to ensure that it meets the user's expectations and performs as intended. Acceptance testing can be conducted by end-users or a dedicated testing team, and it may include alpha testing, beta testing, or user acceptance testing (UAT).
These levels of testing are performed sequentially, starting from unit testing and progressing towards acceptance testing, to ensure that the software is thoroughly tested and meets the desired quality standards.