Section #ABTEI2 says, "The Guidelines have been written largely with a focus on text capture (i.e. the representation in electronic form of an already existing copy text in another medium) rather than text creation (where no such copy text exists). Hence the frequent use of terms like ‘transcription’, ‘original’, ‘copy text’, etc. However, the Guidelines are equally applicable to text creation.".
However, I suggest appending the following to the final sentence of the quotation above:
except that certain elements, such as <gi>sourceDesc</gi>, and certain attributes, such as <ref target="#STGAre">the rendition indicators</ref>, do not apply.