Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Semantic decomposition
- An analysis method that models a system as a hierarchy of ontological dependencies based on meaning and conceptual relationships, rather than breaking it down by functional tasks. In user interface design, semantic decomposition contrasts with traditional task-based…
- Simultaneous Localization and Mapping(also: SLAM)
- A foundational robotics technique in which a robot constructs a map of an unknown environment while simultaneously estimating its own pose within that map. SLAM combines sensor input (typically LiDAR, depth cameras, or monocular vision) with probabilistic state estimation…
- Spatial substrate
- A framework describing the orientation and positioning of information within a design space, using axes and a coordinate system appropriate to how a user perceives content in that space. In the visual design space, a spatial substrate is typically a two-dimensional plane (a…
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