Because Inspection tests not only have explicitly-defined coverage, but also no possibility of interference, their definitions remain the same as the design changes or when the test is inherited into higher levels of the design hierarchy. Although any real-life test can be expressed using an Inspection test, it must be remembered that tests of this type not only may require more effort to define, but also (since their coverage does not update automatically) may need to be reviewed whenever the design is modified to see if the definition needs to be changed.
