| Publisher | York University | ||
|---|---|---|---|
| Format | 169.0KB PDF | Date added | 03 Nov 2004 |
| Topics | |||
| Downloads | 205 | ||
Principles of usability are defined in three categories of learnability, flexibility and robustness where each category includes several principles to support usability of applications. It is easy to find examples of applications that apply these rules, both correctly and incorrectly. Consistency of interfaces and adaptivity of toolbars in OpenOffice show correct application of learnability and flexibility while bad choice of defaults in some cases shows incorrectly application of robustness. Mozilla Firefox supports flexibility in many parts of the application while the inconsistency of interfaces between platforms shows an incorrect application of learnability. Windows Media Player incorrectly applies flexibility by allowing novice users to select completely different interfaces that are very hard to use for them.
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