Hi! I've been part of the chair since the summer of 2020 and joined as a research assistant in August 2023.
My current research is centred around Shape-Changing Interfaces in Smart Homes and Accessibility Computing.
Beyond my research, I provide UX consultation for digitalisation projects across the university. Additionally, I manage our department's website and act as the Public Relations Deputy.
Student Assistants
Thesis Supervisions
| Student | Topic | Type | Semester |
|---|---|---|---|
| Vladislav Gunchev | TBA | Bachelor's Thesis | Summer 2025 |
| Franca Hübner | TBA | Bachelor's Thesis | Summer 2025 |
| Jennifer Drew | TBA | Master's Thesis, co-supervised with Oliver Nowak |
Summer 2025 |
| Kai Welsing | Integration and Usability Evaluation of a Mechatronic Navigation System for Orthopaedic Surgery | Master's Thesis, co-supervised with Noah Wickel (mediTEC)) |
Summer 2025 |
| Destina Kolac | Mitigating Motion Sickness during In-Car Mixed Reality Use with Peripheral Visual Cues | Bachelor's Thesis, co-supervised with Kevin Fiedler |
Winter 2024/25 |
| Lea Sieler | Enhancing Usability and Data Integrity in LiMoxAPI for LA Developers | Bachelor's Thesis, second supervision (first supervision: Prof. Dr. Ulrik Schroeder (LuFgI9)) |
Winter 2024/25 |
| Joel Meyer Espinoza | Energieeffizienz durch Gamification – Weiterentwicklung der DataFEE-App | Master's Thesis, co-supervised with Nicole Koczorek (E.ON Energy Research Center)) |
Winter 2024/25 |
| Maximilian Münker | Investigating an Interactive AI System for Text Accessibility | Master's Thesis | Summer 2024 |
| Lennart Stallmann | Routi - A Novel Indoor Pedestrian Navigation Solution for Public Buildings | Bachelor's Thesis | Summer 2024 |
| Aleksandra Kukawka | Exploring the Advantages of Personalized LLM-Generated Responses for Visually Impaired Users | Master's Thesis | Summer 2024 |
| Nicola Poell | Generalizing a Specific Learning Analytics Dashboard to the OmiLAXR Framework | Master's Thesis, second supervision (first supervision: Prof. Dr. Ulrik Schroeder (LuFgI9)) |
Winter 2023/24 |
| Philip Le | SoRoCAD 3.0: A Cross-Platform Approach to Soft Robotics Design | Bachelor's Thesis, co-supervised with Anke Brocker |
Winter 2023/24 |
| Ruixue Cao | TBA (Sewing Expertise Assessment) | Master's Thesis, co-supervised with Marcel Lahaye |
Winter 2023/24 |
| Moritz Failing | Exploring the Effect of Bright Patterns on Dark Pattern Perception | Master's Thesis, co-supervised with René Schäfer |
Winter 2023/24 |
Teaching
| Semester | Course |
|---|---|
| Summer 2025 | Proseminar Supervising Teaching Assistant |
| Winter 2024/25 | Designing Interactive Systems 1 Lecture teaching assistant + lab tutor, with Paul Preuschoff |
| Summer 2024 | Current Topics in HCI Lecture teaching assistant + lab tutor |
| Winter 2023/24 | Designing Interactive Systems 1 Lecture teaching assistant + lab tutor, with Oliver Nowak |
| Summer 2023 | Current Topics in HCI Lecture teaching assistant + lab tutor, with Marcel Lahaye |
Professional Activities
- CHI 2025 Reviewer (Short Paper)
- CHI 2025 Reviewer (Full Paper)
- MuC 2024 Reviewer (Short Paper)
- MuC 2024 Reviewer (Full Paper)
Publications
- Paul Preuschoff, Sarah Sahabi, René Schäfer, Lea Schirp, Marcel Lahaye and Jan Borchers. Groups vs. Booking Websites: Investigating Collaborative Strategies Against Deceptive Patterns. In Extended Abstracts of the 2025 CHI Conference on Human Factors in Computing Systems, CHI EA '25, pages 9, Association for Computing Machinery, April 2025.
- René Schäfer, Sarah Sahabi, Paul Preuschoff and Jan Borchers. Leveraging Digital Accessibility Using Generative AI.April 2025.
- René Schäfer, Sarah Sahabi, Annabell Brocker and Jan Borchers. Growing Up With Dark Patterns: How Children Perceive Malicious User Interface Designs. In Proceedings of the 13th Nordic Conference on Human-Computer Interaction, NordiCHI' 24, pages 17, Association for Computing Machinery, October 2024.
- René Schäfer, Paul Preuschoff, René Röpke, Sarah Sahabi and Jan Borchers. Fighting Malicious Designs: Towards Visual Countermeasures Against Dark Patterns. In Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems, CHI' 24, pages 13, Association for Computing Machinery, New York, NY, USA, May 2024.
- Marcel Lahaye, Vivian Isabel Reinartz, Sarah Sahabi and Jan Borchers. Towards Authoring Tools For DIY Tutorials: From Tutorial User Strategies to Guidelines (Free Template Included!). In Mensch Und Computer 2023, MuC '23, pages 380–386, Association for Computing Machinery, September 2023.
- Sarah Sahabi. Prevalent Dark Patterns: Investigating Children's Mental Models of Malicious Designs. Master's Thesis, RWTH Aachen University, Aachen, July 2023.
- Sarah Sahabi. SoRoCAD 2.0: Extending a CAD Tool for Soft Robotics. Bachelor's Thesis, RWTH Aachen University, Aachen, April 2021.