This effort-based grading approach comes here from Mike Skocko's (Valhalla High School) fantastic blog in which he asks readers to (re)Imagine high school. This might be an attractive way for some educators to evaluate digital portfolios as expressions of personal learning journeys.
This detailed rubric, which attempts to show a data point for the different types of thinking that should be represented on digital portfolio pages, is not very student friendly. Still, it might serve as a guide when considering the kind of thinking you want students to represent on their digital portfolios.
This guide offers a 3-tiered feedback guide. Teachers adopting this grade/scoring method will give students feedback on Digital Portfolio development over time, Evidence of thinking, Diversity of content, Structure and organization, and Self-reflection.