Unit 3

Consistancy of pop up information:

• Aids navigation - should be in same place on each screen & easy to navigate from places

On-screen Help:

• Easy feature whih replaces manuals - may incorporate online tutorials

Layout appropriate to task:

• Learning packages for children / CAD used by people who are trained to use it

Clear Navigational Structure:

• Make it clear where the user is to go next - text near hotspots telling users to use them.

Sensory Problems - difficulty in seeing the screen or not seeing the screen at all.

Solved by:

• Braille printers or keyboards
• Make the text larger or change the colour of the text to suit colour blind people.
• Use speech synthesisers to spell the words out.

Motor Problems - not being able to use a keyboard or mouse.

Solved by:

• Touch screen or biometric devices
• Biometric methods such as voice recognition or retinal scans
• Specially designed interfaces with input devies such as blow pipes and eye movement devices.