Existing Wording: Inferential techniques for determining variants in sequences rely upon a standard as a reference. For example, inference from microarrays is done through comparing the signal produced by a sample to a known standard reference. In the case of microarrays, the probe set used conveys the positions interrogated. In Mass spectrometry, the standard is the mass of a known reference. In inferential techniques the output is the presence or absence of variation with a technique specific measurement of accuracy.

Comment:

Don't think this is exactly correct and worry that we will have to spend time on this when it would be easy to cite well polished reference (or quotes from it).

Summary:

Possible inaccuracy