ERROR TESTING

Exploratory testing is rather difficult to line up with the other test design techniques. It is not based on any of the described basic techniques, it leaves a free choice of basic techniques to be applied and it provides no guaranteed coverage. Exploratory testing is often associated with testing in the absence of a formal test basis, such as a functional design. However, this is not necessarily true. It is entirely possible to apply it with a well-described system. Having said that, the technique lends itself very well to situations in which no described test basis is present.  Exploratory  testing  puts  less  emphasis  on  a  described  test  basis  and  more  on  other  ways  of  assessing  the  adequacy  of  the  test  object, such as by familiarisation with the system in the course of the test execution.