Teo, L., John, B. E. John, and Blackmon, M. H. (2012). CogTool-Explorer: A model of goal-directed user exploration that considers information layout. Proceedings of CHI 2012 (Austin, TX, May 5-10, 2012). ACM, New York.


CogTool-Explorer 1.2 (CTE1.2) predicts novice exploration behavior and how it varies with different user-interface (UI) layouts. CTE1.2 improves upon previous models of information foraging by adding a model of hierarchical visual search to guide foraging behavior. Built within CogTool so it is easy to represent UI layouts, run the model, and present results, CTE1.2’s vision is to assess many design ideas at the storyboard stage before implementation and without the cost of running human participants. This paper evaluates CTE1.2 predictions against observed human behavior on 108 tasks (36 tasks × 3 distinct website layouts). CTE1.2’s predictions accounted for 63-82% of the variance in the percentage of participants succeeding on each task, the number of clicks to success, and the percentage of participants succeeding without error. We demonstrate how these predictions can be used to identify areas of the UI in need of redesign.

Relevance to CogTool: Extends CogTool to predict novice exploration behavior and shows how these predictions can be used to focus design effort.
Copyright Notice: Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. CHI 2012, May 5-10, 2012, Austin, TX, USA. Copyright 2012 ACM 978-1-4503-1015-4/12/05…$10.00.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Cognitive Crash Dummies: Predictive human performance modeling for UI design

%d bloggers like this: