Test basis includes software and system design, test objects include interfaces, and tests concentrate on the interactions between different parts of a system

Test basis includes component requirements, test objects include database modules, and tests concentrate on the behaviour of the system as a whole.

Test basis includes business processes, test objects include system configuration and configuration data, and tests concentrate on establishing confidence in the system

Test basis includes use cases, test objects include user procedures and tests concentrate on a high level model of system behaviour