Computer science · University
Accessibility and performance
Text that identifies a control to assistive technology.
Prerequisites
Basic computer literacy.
Study notes
Accessible name
Text that identifies a control to assistive technology.
Keyboard access
The ability to operate interactive features without a pointing device.
Alternative text
A textual equivalent for meaningful non-text content.
Performance budget
A practical limit for resource size or runtime cost used to protect speed.
Worked examples
Which term best matches this description: Text that identifies a control to assistive technology.
Accessible name is the matching concept in this lesson.
Accessible name
Which term best matches this description: The ability to operate interactive features without a pointing device.
Keyboard access is the matching concept in this lesson.
Keyboard access
Check your understanding
Which concept would you apply first in a situation where a textual equivalent for meaningful non-text content.
- Keyboard access
- Accessible name
- Alternative text
- Performance budget
Name the concept described as: A practical limit for resource size or runtime cost used to protect speed.
Which statement about Accessible name is most accurate?
- The ability to operate interactive features without a pointing device.
- Text that identifies a control to assistive technology.
- A practical limit for resource size or runtime cost used to protect speed.
- A textual equivalent for meaningful non-text content.
Explain one important difference between Accessible name and Keyboard access.
Answers and marking guidance
Answers and marking notes
- Alternative text
The scenario directly calls for Alternative text.
- Performance budget
The intended concept is Performance budget.
- Text that identifies a control to assistive technology.
The definition in the lesson notes gives the required condition.
- Accessible name: Text that identifies a control to assistive technology. Keyboard access: The ability to operate interactive features without a pointing device.
Credit a clear distinction using both definitions and an appropriate example if supplied.
Further reading and review references
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