User Interface

Speed of Response

• Expectations risen in line with technological developments.

Ease of Use

• Not wasting time learning basic operating tools. So anybody in the general public is able to use it with no training.

Limited memorisation of commands

• User should have to remember long sequences of commands to operate the system.

Online Assistance

• Interface should be designed so the user doesn't have to refer to manuals.
• Interface assists to minimise errors.
• Responds with an explanation of the problem and how the user is able to solve it.