Here are my slides from my presentation at the Innovate Learning Summit yesterday. It's not world-shattering stuff - just a brutal attack on proctored, unseen written exams (PUWEs, pronounced 'pooies'), followed by a description of the rationale, process, benefits, and unwanted consequences behind the particular portfolio-based approach to assessment employed in most of my teaching. It includes a set of constraints that I think are important to consider in any assessment process, grouped into pedagogical, motivational, and housekeeping (mainly relating to credentials) clusters. I list 13 benefits of my approach relating to each of those clusters, which I think make a pretty resounding case for using it instead of traditional assignments and tests. However, I also discuss outstanding issues, most of which relate to the external context and expectations of students or the institution, but a couple of which are fairly fundamental flaws (notably the extreme importance of prompt, caring, helpful instructor/tutor engagement in making it all work, which can be highly problematic when it doesn't happen) that I am still struggling with.