This project explores how Natural User Interfaces (NUI) can fundamentally improve train ticket purchasing. Born during the COVID-19 pandemic, it addresses hygiene concerns with touchscreens and the poor usability of existing machines.
Focusing on innovative interaction design and technical implementation rather than visual design, the concept allows contactless ticket purchase via voice commands and swipe gestures. Users are guided step by step, with a progress bar and the assistant Coro providing tips and support.
The result is a friendly, structured, and intuitive interface, developed in collaboration with two Master’s students at TH Ingolstadt.
Role
UX/UI Designer
Scope
UX Conception, UI Design, UX Evaluation
Platform
Device
Duration
4 Months
Team
2 Fellow Students
Tools
Figma
Unity Game Engine
Microsoft TTS/STT
C# Speech SDK
Leap Motion Controller
Orion Unity SDK
Unity Game Engine
Microsoft TTS/STT
C# Speech SDK
Leap Motion Controller
Orion Unity SDK
Demonstration of interaction with voice commands and swipe gestures
UCD Approach
We followed the User-Centered Design (UCD) approach: analyzing the problem and user context with a persona and journey map, defining requirements through user stories, and developing the interaction concept and information architecture. Sketches, wireframes, and a low-fidelity prototype were tested in a Wizard-of-Oz experiment with representative users. A styleguide based on Deutsche Bahn’s design guidelines guided the UI designs, and the high-fidelity prototype was built in Unity.
Styleguide
Information architecture
Sketches
Wireframe variants
