Executing tests can show failures that are caused by
defects in the software.
Debugging is
development activity that finds, analyzes, and fixes such defects.
in some cases, testers are responsible for the initial test and the final confirmation test, while developers do
the debugging, associated component and component integration testing (continues integration).
in Agile development and in some other software development lifecycles, testers may be involved in
debugging and component testing
ISO standard that has information about software testing concepts
ISO/IEC/IEEE 29119-1
confirmation testing checks
whether the fixes resolved the defects