Research vision · Human–computer interaction

Beyond Design Outcomes

Interactive Tools for Design Reasoning

My research investigates how interactive tools can support design reasoning as problems and solutions co-evolve.

I focus on CAD and digital fabrication, where design decisions shape geometry, materials, fabrication processes, and physical use. Through comparison, reflection, and collaboration, I develop tools that help designers explore alternatives, recognize emerging considerations, and continue developing unresolved decisions.

Research question · How can interactive design tools support designers' reasoning as problems and solutions co-evolve?

I organize this research around two dimensions: where tools enter design reasoning between the Problem and Solution Spaces, and who participates, from individuals to broader communities. Projects are positioned by their relative research emphasis along both dimensions; reasoning can move between the spaces as designs evolve.

Research framework: reasoning emphasis and participation Research framework organized along two continuous dimensions, with Problem Space above Solution Space and participation from Individual through Group to Community. All core projects are equal-sized circular points marking their primary reasoning entry emphasis. CAMeleon is placed near the individual solution-space end; aCADemy lies on the problem-space side near the boundary; FuzzyCAD lies on the group solution-space side near the boundary. Positions show qualitative entry emphasis, not measured impact or contribution magnitude. Smaller dashed circles near the middle show related work: Design with Myself, TOM Search, and Y-AR. Community remains open for future research. Individual Group Community Problem Space What to achieve Solution Space How to achieve it aCADemy CAMeleon FuzzyCAD Design with Myself: awareness of the designer's responses during designDesign with Myself TOM Search: connect assistive needs to potential existing solutionsTOM Search Y-AR: wire geometry design and fabrication in physical environmentsY-AR Research framework, mobile layout Two-dimensional qualitative map. Core projects are equal-sized circles placed at different points along the problem to solution and individual to community dimensions: aCADemy near the problem-solution boundary on the problem side, CAMeleon close to the individual solution end, and FuzzyCAD near the boundary on the group solution side. Smaller dashed rings near the middle mark Design with Myself, TOM Search, and Y-AR. Individual Group Community ProblemSpaceWhat to achieve SolutionSpaceHow to achieve it aCADemy CAMeleon FuzzyCAD Design with Myself: reflecting on the designer's own responsesDesign with Myself TOM Search: connecting needs and candidate solutionsTOM Search Y-AR: fabricable wire-form modelingY-AR
Core research Related work · Positions indicate the primary reasoning entry point, not a measure of contribution size.

News

Updates & milestones

  • Upcoming A-exam presentation: Beyond Design Outcomes: Interactive Tools for Design Reasoning. I will present my research agenda on how interactive tools can support reasoning as design problems and solutions co-evolve. Cornell Tech, Bloomberg Center, Room 201 (20 VC). To request the Zoom link, please email sf522@cornell.edu.

  • Siegel PiTech PhD Impact Fellow with TOM Global. Built a multi-source assistive technology search tool. Project details ↗

  • CAMeleon was accepted to ACM CHI 2026; I attended and presented the work in Barcelona, April 13–17.

    CAMeleon fabrication workflow comparison interface
  • OriStitch was featured in Cornell News ↗.

    A hat fabricated with the OriStitch system
  • Y-AR and OriStitch were published at the ACM Symposium on Computational Fabrication.

Earlier news ↓

News archive ↗

Research

Publications, ongoing research & applied projects

Showing all 9 projects

CAMeleon fabrication workflow comparisons

Published ACM CHI · 2026

CAMeleon: Comparing Fabrication Workflows in CAD to Support Design Reasoning

Shuo Feng, Xuening Wang, Yifan (Lavenda) Shan, Krista U Singh, Bo Liu, Amritansh Kwatra, Ritik Batra, Tobias M Weinberg, Thijs Roumen

Learners often begin with a familiar fabrication workflow and may lack the knowledge to judge alternatives. Early modeling choices can make it difficult to change direction as their design develops. CAMeleon lets learners compare workflow outcomes for the same model, supporting exploration of trade-offs and the development of informed design judgments.

CADDesign reasoningWorkflow comparisonLearning
aCADemy research project image

Research in progress

aCADemy: Guided Reflection on Fabrication-centric CAD Decisions Through AI

aCADemy is an AI-based reflective interface that works alongside CAD software. It presents contextual questions about fabrication considerations during modeling, helping designers reflect on decisions while retaining control over how their designs develop.

CADDesign reasoningGuided reflectionHuman–AI

Research in progress

FuzzyCAD: Supporting Collaborative Design Reasoning through Deferred Decisions in CAD

FuzzyCAD lets collaborators express unresolved design decisions directly on CAD geometry, contribute constraints and identify competing requirements. The project examines how collaborators with different expertise can progressively develop these decisions across asynchronous handoffs.

CADDesign reasoningDeferred decisionsCollaboration
TOM multi-source assistive technology search results and candidate assessment

Applied research Siegel PiTech Fellowship · 2026

Making Assistive Technology Search Actionable through a Multi-Source Retrieval Tool for TOM

People seeking assistive technology often describe everyday challenges without knowing the technical names of relevant solutions. Developed with TOM Global, this tool connects conversational intake to searches across assistive technology catalogs, open-source designs, and commercial products. It helps staff assess whether a result can be used as-is, adapted, or turned into a new maker challenge when existing solutions do not fit.

Assistive technologyMulti-source retrievalNeeds assessment
FloodMap NYC map, flood-event timeline and monitoring dashboard

Applied research PiTech Fellowship · 2025

Making Environmental Data More Accessible for NYC Flood Preparedness

Developed with the NYC Mayor's Office of Climate & Environmental Justice, this interactive dashboard presents flood sensor readings, historical events, and localized monitoring information in an accessible format. It helps New York City residents explore flood-related data and better understand conditions relevant to their neighborhoods.

Data visualizationFlood preparednessCivic technology
Y-AR mixed reality wire bending tool

Published ACM SCF · 2025

Y-AR: A Mixed Reality CAD Tool for 3D Wire Bending

Shuo Feng, Bo Liu, Yifan (Lavenda) Shan, Roy Zunder, Wei-Che Lin, Tri Dinh, Harald Haraldsson, Ofer Berman, Thijs Roumen

Y-AR is a mixed-reality CAD tool for creating three-dimensional wire structures that connect to objects in the physical environment. Its interface incorporates springs as design primitives, both to apply forces that hold objects and to accommodate dimensional inaccuracies from mid-air modeling and measurement.

Mixed realityCADDigital fabrication
OriStitch self-folding embroidered textiles

Published ACM SCF · 2025

OriStitch: A Machine Embroidery Workflow to Turn Existing Fabrics into Self-Folding 3D Textiles

Zekun Chang, Yixuan Gao, Yuta Noma, Shuo Feng, Xinyi Yang, Kazuhiro Shinoda, Tung D Ta, Koji Yatani, Tomoyuki Yokota, Takao Someya, Tomohiro Tachi, Yoshihiro Kawahara, Koya Narumi, Francois Guimbretiere, Thijs Roumen

OriStitch transforms existing flat fabrics into self-folding three-dimensional structures through computational embroidery. Functional threads are stitched in specific patterns and then activated with heat to achieve a target form. The workflow works with a range of materials, including leather, woven fabric, and denim.

Computational fabricationEmbroiderySmart textiles
EEG headset and VR setup for the Multi-Self project

Published International Journal of Human–Computer Studies · 2024

Design with Myself: A Brain–Computer Interface Design Tool That Predicts Live Emotion to Enhance Metacognitive Monitoring of Designers

Qi Yang, Shuo Feng, Tianlin Zhao, Saleh Kalantari

Multi-Self is a BCI–VR design tool that provides real-time visual feedback about designers' emotional responses to support metacognitive monitoring. A pilot study with 24 participants reported increased design exploration and self-awareness, while responses to the accuracy of the emotional feedback were mixed.

Brain–computer interfaceVirtual realityMetacognition
Emotive Room modular responsive installation illuminated in blue and purple

Published ACADIA · 2023

Emotive Room: A BCI Interactive Architectural Interface

Shuo Feng, Saleh Kalantari, Jenny Sabin

Emotive Room explores how an interactive architectural environment can respond to people's emotional states through real-time brain–computer interaction. By changing spatial color and form in response to stress-related feedback, the project investigates responsive environments that may support calmness and well-being.

Brain–computer interfaceResponsive architectureBiofeedback

Outside the Lab

Fishing days and life beyond CAD

Standing in a river with a fishing rod during the autumn salmon run, surrounded by fall foliage

Early Oct 2026 · Salmon run

Salmon-run river fishing

Waders on, rod out, and fall colors everywhere. 🎣

Holding a freshly caught fish on a fishing boat off Tampa, Florida

Sep 2026 · Tampa, Florida

Offshore fishing in Tampa

A sunny day on the water, and a catch worth a photo. 🎣

Contact

Shuo Feng · Ph.D. Student, Information Science · Cornell Tech

sf522@cornell.edu · Google Scholar · · CV