A post I cannot help but recommend as we get going past the discussion of transcription http://go-to-hellman.blogspot.com/2011/07/library-data-why-bother.html

The clarity it looks like most students reached on the complex, interpretive areas of transcription (as in title) versus the exhausting straightforward data elements (like pagination). What other systems do not have ‘built in’ is the tiering out of the capturable information on resources.