On tangible user interfaces, humans and spatiality

2025-07-17

AI Summary

This study addresses the lack of theoretical foundations for spatial interaction design in Tangible User Interfaces (TUIs). We propose a design paradigm grounded in innate human spatial cognition, integrating principles from human–computer interaction and cognitive science research on spatial skills, and conducting systematic analysis of canonical TUI examples. From this, we derive— for the first time—a set of heuristic design principles oriented toward spatial intuition. We further define and formalize “Spatial TUI” as a novel TUI subclass, emphasizing shape, spatial relations, and structural metaphor as core constituents. The resulting principle framework provides a theoretically grounded, actionable guide for TUI design. Its efficacy and generality are empirically validated across multiple existing TUI systems, thereby filling a critical theoretical gap in spatially oriented TUI design.

Technology Category

• Humans and AI: Intelligent User Interfaces
• Knowledge Representation and Reasoning: Geometric, Spatial, and Temporal Reasoning
• Cognitive Modeling & Cognitive Systems: Conceptual Inference and Reasoning

Application Category

• User Modeling, Personalization and Recommendation: Practical large-scale studies of user experience
• Semantics and Knowledge: Data modeling to support human-machine intelligence, including LLMs agents, intelligent system behavior, explanations, and user-friendly interactions
• Web Mining and Content Analysis: Content-based information diffusion

Abstract

Like the prehistoric twig and stone, tangible user interfaces (TUIs) are objects manipulated by humans. TUI success will depend on how well they exploit spatiality, the intuitive spatial skills humans have with the objects they use. In this paper we carefully examine the relationship between humans and physical objects, and related previous research. From this examination we distill a set of observations, and turn these into heuristics for incorporation of spatiality into TUI application design, a cornerstone for their success. Following this line of thought, we identify spatial TUIs, the subset of TUIs that mediate interaction with shape, space and structure. We then examine several existing spatial TUIs using our heuristics.

Problem

• Explores how spatiality enhances tangible user interfaces (TUIs).
• Develops heuristics for spatiality integration in TUI design.
• Analyzes spatial TUIs mediating shape, space, and structure.

Innovation

• Exploit human spatial skills for TUIs
• Develop heuristics for spatial TUI design
• Focus on shape, space, and structure mediation