modeling design knowledge

Great news! We’ve got another paper out on knowledge construction in design. We introduce something we call the CDH model of design knowledge, which stratifies different bodies of design-specific knowledge into ranked levels. We compare it with existing hierarchical models of knowledge, and describe its unique uses and benefits for both design research and design […]


Super excited that our (Omar Sosa-Tzec and John M. Carroll) submission to SIGDOC was accepted and that we’ll be publishing a full paper in the ACM digital library to accompany the presentation. The paper takes an existing thread of my research in an exciting new direction, and I couldn’t have done it without the insight […]

new publication

Great news! We have a new publication out today summarizing some of the work we’ve been doing in an online debate community ( In particular, we discuss how conflict can serve as well as undermine the work that moderators do, and we highlight ways that UI design could be a scalable way to facilitate conflict […]

Visual Thinking + Discourse Analysis

One question many discourse analysts ask when they’re familiarizing themselves with data is: how could things be different? If you’re comfortable messing around with Photoshop and your text includes images, then you can create sketches as a way of making these hypothetical differences more concrete. Sketching is a powerful way to explore the effects of, […]

design course development

I’ve been sketching some new ideas for undergraduate design courses, and, although I came up with these with a particular program in mind, they could easily be iterated on to fit within many other curricula, as electives, etc. I’m sharing them here so that you might be inspired to take an idea and run with […]

Working Papers

I had a terrific opportunity last week to chat with faculty at a different university about my CV, and one of the things we discussed was how to account for works in progress on a CV. I’d been accounting for work that either (1) has a preprint available for download or (2) is under review […]

You Can Always Start Designing

Over the past few days, I have heard a few students and colleagues say a variation of the following: I don’t know enough to start designing yet. I want to challenge this idea. I don’t think that there is some threshold of knowledge that must be passed before one can start designing. You can always […]


Looking forward to CHI2018 in Montreal, QC, Canada! This year I am humbled to be first author on one full paper and a contributing author on a second full paper. Two full papers! Huzzah! The first author paper examines the concept of the theory-practice gap as a generative metaphor. Here is the abstract: The theory-practice […]