The indispensible conditions of improvement are that the student comes to hold a concept of quality roughly similar to that held by the teacher, is able to monitor continuously the quality of what is being produced during the act of production itself, and has a repetoire of alternative moves or strategies from which to draw at any given point.
(Sadler, 1989 p.121) [his italics]
I think what I like about it is the bit about understanding what's quality whilst doing the assessment, perhaps stressing the need for formative feedback whilst a work in progress.
Is this maybe why blogs and wikis have potential in HE?
Sadler, D.R. (1989). ‘Formative assessment and the design of instructional systems’. Instructional Science, 18, pp. 119-144