Students are unlikely to be familiar with this kind of grading and may initially feel some anxiety that grading is going to work differently in your course. That's okay, and you can ease students by explaining what specifications grading is on your syllabus, on assignments, and in activities that re-purpose the specs list (like self-assessment and peer review). Below is language that I use to describe specifications grading to my students:
What is “Specifications Grading?” Specifications are used often in industry as instructions or guidelines for a project. Similarly, when your teacher gives you a project, they often have certain expectations of requirements; these are specifications. When you submit your work, a specifications grading approach treats the specs below as a checklist so I can see if you’ve met the necessary criteria. I hope this approach to grading will make sure everyone is on the same page and that you can clearly see the standards and expectations I had in mind when the project was created.
These lists can take time to perfect. I know the first time I tried this method, my specifications were not specific enough. It's okay to treat your specifications list as an in-process document that you refine from semester to semester.
Your feedback is essential to students' learning, but too often we labor to evaluate and give feedback on an assignment when students complete it, which doesn't leave much incentive for students to read and use our feedback. By using specs grading, I've shifted my feedback focus to formative feedback, meaning I give students feedback as they are revising and building their portfolio. My summative (or final) feedback includes the specs list and a couple of points of praise and corrective feedback. This lessens my end-of-course labor and allows me to enjoy the portfolio evaluation process.
University Writing. (n.d.). Electronic portfolio resources. Auburn University. https://auburn.edu/academic/provost/university-writing/resources/?tag=Electronic%20Portfolio
McKnelly, K. J., Morris, M. A., & Mang, S. A. (2021). Redesigning a “Writing for Chemists” course using specifications grading. Journal of Chemical Education, 98(4), 1201–1207. https://doi.org/10.1021/acs.jchemed.0c00859
Nilson, L. B., & Nilson, L. B. (2014). Specifications grading: Restoring rigor, motivating students, and saving faculty time. Taylor & Francis Group.