Based on the results of the PRA, the depth of testing is determined for each unit (or combinations of units) of the system. This is established per test level (unit test and unit integration test). The depth of testing is determined per characteristic/object part combination. If the method uses basic quality and higher quality levels, the testing depth is related to these. As further detailing, or as an alternative, a choice may be made from the following possibilities:

●●● Thorough testing
●● Average testing
● Light testing
S Static testing; checking and inspecting products without running software

If a cell is empty, this means that the relevant evaluation or test level can ignore the characteristic. The result of the activity “Determining the test strategy” is established in a strategy matrix and might look as follows:

Unit test example:


RC MTP = Risk class assigned to the characteristic from within the master test plan
UNIT MTP = Depth of testing allocated from within the master test plan to the test (in this case, the unit test)
A, B, C = Risk class allocated from within the PRA; A=High, B=Average, C=Low

In addition, it should be considered whether code reviews are necessary, whether on all the code, on the code of the more risk-related units, or on the components and/or tools configured using parameters.