1.2 HMI/MMI DESIGN

• The common trend is to adopt a user interface which often have,

- Icons

- A pointer device (such as a mouse)

- Full color

- Support for multiple windows, which run programs simultaneously

- Popup menus

- Windows can be moved, scaled, moved forward/back, etc.

• The current demands on user interfaces are,

- on-line help

- adaptive dialog/response

- feedback to the user

- ability to interrupt processes

- consistent modules

- a logical display layout

- deal with many processes simultaneously

• To design an HMI interface, the first step is to identify,

1. Who needs what information?

2. How do they expect to see it presented?

3. When does information need to be presented?

4. Do the operators have any special needs?

5. Is sound important?

6. What choices should the operator have?