Glossary
Searchable terminology from accessibility, web standards, and related fields.
3 results found in switch access.
- Microswitch (Micro-switch, Assistive Switch)
- A small, sensitive switch used in assistive technology that can be activated by minimal physical movement such as a light touch, head turn, or muscle contraction. Microswitches are used to provide env…
- Response Time (Reaction Time, Tact)
- The time elapsed between the presentation of a stimulus and the user's physical response, typically measured in milliseconds. In scanning-based AAC, response time (often called Tact) is the interval b…
- Scanning Delay (Tscan, Scan Rate, Dwell Time)
- The time interval a scanning system waits before automatically advancing to highlight the next item. Setting scanning delay appropriately is critical for switch access users: too short causes selectio…