UIK

Physical Enviroment

inside the university building

simple shape designed to easy to carry when it is nessaray to move to different places

the cover metal should be easy to clean(Aluminium)

in the university yard

Have a shade to protect user and the machine from snow and rain or heavy sunlight.

The design metal can stand with different kinds of weather such as rain,snow or sun shine

The cover metal should be easy to clean

Social Enviroment

The Volume is kept in balance in order not to disturbe other people in near area

keep the machine stay away the area with lots of vechile in order to make a quite enviroment and avoid the accident for users

Organisational content

easy to clean

Physical

Disabilities

Visual

The system have the specific sound instruction function.

Auditory

Have a picture in each main tab for user realize what is in the tab an

Volume adjustment

seat in the wheel chair

the screen must not be too high

Size of hand/fingers

the tab have to be big so with the big hand or small hand can touch its easily

have a thick crystal on the screen the stand with the strong finger touch force

pshychological

Cognitive usability

have the instruction function for each tab when click the icon "?"

have the undo/go back function for user can go back and check the information in the previous screen

Confirm the decision of user in the important or big task in the system.

Have the description pictures in each tab->users can guess what is going on in the next screen

Have the fuction to bring user into the main screen when they get lost(home fuction)

Use simple and understandable noun phase or verb phase in each tabs

have the hep function to help user understand the meaning of each tabs

Usage

easy to learn without the instruction book.

user can keep track where are they and what they do via the helping fuction of the system

easy to clean

User input

have the sound feed back when the system receives the touching

have the sensitive touch screen

user do not take a heavy push into the screen

have a fast CPU

load the system from the previous screen to the next screen faster

Common buttons should be easy to find and use

Buttons with the related function should be grouped near the others

1 touch system

prevent the user put 2 or 3 buttons in the same time.it requires more memory in the system->cost more money

Output

clear and fast output when the user put the tabs

Colloborated screen