TD types could be classified two main perspectives, and without overlap between them : TD Types from Software Development Phases (and TD Types from their Way [...]
It refers to issues related to testing activities impacting internal quality. Some examples of Test Debt items are: lack, insufficient or inadequate tests, low test coverage, [...]
Tatical TD results from deliberate (intentional) decisions whose incurrence is known by the development team. Tatical debt decisions are associated to the required time (short time), [...]