Software Testing And 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 system to evaluate its compliance with the specified requirements. It focuses on testing the system as a whole, including its functionality, performance, reliability, and security. System testing is typically performed by a dedicated testing team and involves various techniques such as functional testing, performance testing, and security testing.
4. Acceptance Testing: Acceptance testing is the final level of testing and is performed to determine whether the software meets the expectations and requirements of the end-users or stakeholders. It involves testing the software in a real-world environment to ensure that it functions as intended and satisfies the user's needs. Acceptance testing can be conducted through techniques such as user acceptance testing (UAT) or alpha/beta testing.
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.