Security Test Definitions

Hello list members,

at the moment, i'm writing my diploma thesis in the field of penetration
testing.
i wonder if there exist some 'official' definitions about the different
types of tests one can do. i know that every pen-tester/company has his
own definitions of what they call a "penetration test", "security
assessment", "security review", "security audit", "application audit"
etc... but are there some standards that define the different types of
security tests?
i had a look at ISSAF and OSSTMM, but neither come up with definitions
of tests...

Regards,

Patrick

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