next up previous
Next: User Delay Models from Up: System-user Interaction Modeling Previous: STD extraction

Intra-state consistency

For a user, an STD state represents a unique and relative consistent user interface and requires relatively consistent user reaction. However, different states differ in their intra-state consistency. The same state may have different internal data and external user interface appearance during usage. The content of a state can even be dynamic, $e.g.$, file browsers and text readers. Intra-state consistency can be improved by using more states. The dynamic content problem can be partially solved by obtaining information about the content, such as obtaining the number of items in the current directory and the size of the text to be shown.

Lin Zhong 2003-12-20