A limitless variety of adaptations are possible using AEF, and many of them could have far-reaching consequences for the rest of the system. Adaptations need to be executed with a high degree of skill and knowledge, otherwise there is a risk of errors being introduced into Front Arena, which may be difficult to diagnose and resolve.
To reflect this complexity, and to certify that users of AEF have an appropriate level of competence, the grading of certification exercises is carried out with a corresponding level of strictness. Calculated values cannot be almost correct. Returned values cannot almost fulfill demands. There must also be no question as to whether the candidate worked alone.