Title
An extended keystroke level model (KLM) for predicting the visual demand of in-vehicle information systems
Abstract
To assess the potential distraction of In-Vehicle Information Systems (IVIS), simple, low cost evaluation methods are required for use in early design stages. The occlusion technique evaluates IVIS tasks in interrupted vision conditions, aiming to predict likely visual demand. However, the technique necessitates performance-focused user trials utilising robust prototypes, and consequently has limitations as an economic evaluation method. HCI practitioners view the Keystroke Level Model (KLM) as a reliable and valid means of modelling human performance, not requiring empirical trials or working prototypes. This paper proposes an extended KLM, which aims to predict measures based on the occlusion protocol. To validate the new method, we compared results of an occlusion study with predictions based on the assumptions of the extended KLM. Analysis revealed significant correlations between observed and predicted results (R=0.93-0.98) and low error rates (7-13%). In conclusion, the extended KLM shows considerable merit as a first-pass design tool.
Year
DOI
Venue
2007
10.1145/1240624.1240852
CHI
Keywords
Field
DocType
low cost evaluation method,extended keystroke level model,in-vehicle information system,occlusion protocol,first-pass design tool,occlusion technique,low error rate,economic evaluation method,extended klm,early design stage,occlusion study,ivis task,visual demand,hci,human performance,error rate,keystroke level model
Distraction,Information system,Keystroke-level model,Computer science,Cost evaluation,Economic evaluation,Design tool,Human–computer interaction
Conference
Citations 
PageRank 
References 
12
1.40
9
Authors
3
Name
Order
Citations
PageRank
Michael Pettitt1263.26
Gary Burnett2243.62
Alan Stevens3121.40