[IxDA Discuss] Hypotheses about tasks

[Barbara Ballard]

On 8/17/06, Robert Hoekman, Jr. <rhoekmanjr at gmail.com> wrote:
>
> 1) "The difficulty of completing a task is a function of the number of steps
> involved in the task and the time it takes to perform each step."

It may be a function, but only partially a function.  And what
constitutes a "step"?  On a scroll-and-select device, is "scroll to
the item in the list" a step?  Or should the "and select it" be added?
 This is why I liked creating a new notion of "distance", because
cognitive load does not increase noticeably with number of clicks, but
depends on type of click (or rather, decision making behind the
click).


-- 
Barbara Ballard
barbara at littlespringsdesign.com 1-785-550-3650