Task complexity and online performance

While I don’t have a research reference, I would add to Jay’s comment about the mental model. It very much depends on the skills of the user. In my experience with software UI, skilled users with in depth task knowledge prefer a comprehensive form, probably because it better fits both mental model and task processing ability.

[posted to Sigia-L by ASM in response to a discussion about task complexity and online completion time.]

—–Original Message—–
From: sigia-l-bounces_at_asis.org [mailto:sigia-l-bounces_at_asis.org] On Behalf
Of Jay Luker

I will say this: you should always try to have the complexity of the interface in accordance with the complexity of the task. Breaking things up into a wizard style series of smaller forms != reduced complexity and might even increase it if it makes it difficult for the user to maintain a mental
representation of what the system is doing.

On 12/8/05, Geri Modell <GMODELL_at_lds.com> wrote:
> I would also like to know if anyone is aware of research/studies done
> to determine – for a complex task-oriented application – the max # of
> features or tasks that should be placed on each page. Is it best to
> condense many tasks onto one page, or better to have users click their
> way thru a series of simpler pages, each w/one task? Thanks!

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About mielniczuk

Community, systems, design, collaboration, change, evidence, Intelligent Accountability(c)
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