Aesthetics and Assessment

The Vielstimmig and Kress articles both highlight the inherently creative and aesthetic aspects of new media. Kress concludes by talking about the need for a "new evalutation and description of the resources for representation and communication" (54), which gets back to a question that Matthew asked in response to one of my blog posts: How do we assess students' new media compositions? More specifically, I wonder: How do we evaluate the aesthetic components?

Also, Kress's discussion of the plurality of our society leads me to wonder if evaluating aesthetics wouldn't necessarily require the imposition of hegemonic and/or teacher-centered values? How can we avoid grading student work based on our own artistic tastes?