Testing is the process of finding defects whereas Debugging is the process of finding, analyzing AND resolving them. Differences between TESTING and DEBUGGING are listed below:
| Criteria | Testing | Debugging |
|---|---|---|
| ISTQB Definition | The process consisting of all lifecycle activities, both static and dynamic, concerned with planning, preparation and evaluation of a component or system and related work products to determine that they satisfy specified requirements, to demonstrate that they are fit for purpose and to detect defects. | The process of finding, analyzing and removing the causes of failures in a component or system. |
| Objective | The objective of testing is limited to finding defects (and confirming that the defects are fixed). | In addition to finding defects, the objective of debugging is to analyze and resolve them. |
| Responsibility | Normally independent testers are responsible for testing. | Developers are responsible for debugging. |
| Automation | Testing can be either manual or automated. | Since human analysis is required during the process of debugging, it has to be performed manually and can’t be automated. |
| Knowledge | Testing can be performed without the knowledge of how the software is built. | Successful debugging requires the knowledge of the software’s architecture and technical design. |
Last Updated on September 12, 2025 by STF