Mental workload dynamics in adaptive interface design

1988 ◽  
Vol 18 (4) ◽  
pp. 647-658 ◽  
Author(s):  
P.A. Hancock ◽  
M.H. Chignell
Keyword(s):  
Interface Design ◽  
Mental Workload ◽  
Adaptive Interface

Design and Evaluation of Individual Elements of the Interface for an Agricultural Machine

2018 ◽  
Vol 24 (1) ◽  
pp. 27-42
Author(s):  
Aadesh K. Rakhra ◽  
Danny D. Mann
Keyword(s):  
User Interface ◽  
Situation Awareness ◽  
Interface Design ◽  
Information Needs ◽  
Mental Workload ◽  
Mean Difference ◽  
Human Operator ◽  
Interface Elements ◽  
Agricultural Machines ◽  
User Centered

Abstract. If a user-centered approach is not used to design information displays, the quantity and quality of information presented to the user may not match the needs of the user, or it may exceed the capability of the human operator for processing and using that information. The result may be an excessive mental workload and reduced situation awareness of the operator, which can negatively affect the machine performance and operational outcomes. The increasing use of technology in agricultural machines may expose the human operator to excessive and undesirable information if the operator’s information needs and information processing capabilities are ignored. In this study, a user-centered approach was used to design specific interface elements for an agricultural air seeder. Designs of the interface elements were evaluated in a laboratory environment by developing high-fidelity prototypes. Evaluations of the user interface elements yielded significant improvement in situation awareness (up to 11%; overall mean difference = 5.0 (4.8%), 95% CI (6.4728, 3.5939), p < 0.0001). Mental workload was reduced by up to 19.7% (overall mean difference = -5.2 (-7.9%), n = 30, a = 0.05). Study participants rated the overall performance of the newly designed user-centered interface elements higher in comparison to the previous designs (overall mean difference = 27.3 (189.8%), 99% CI (35.150, 19.384), p < 0.0001). Keywords: Agricultural machines, Interface design principles, Situation awareness, User-centered design, User interface design, User experience.

scholarly journals A Conceptual Architecture for Adaptive Human-Computer Interface of a PT Operation Platform Based on Context-Awareness

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Qing Xue ◽  
Xuan Han ◽  
Mingrui Li ◽  
Minxia Liu
Keyword(s):  
Context Awareness ◽  
Interface Design ◽  
Information Modeling ◽  
Computer Interface ◽  
Design Knowledge ◽  
Human Computer Interface ◽  
Knowledge Reasoning ◽  
Adaptive Interface ◽  
Key Technologies ◽  
Operation Platform

We present a conceptual architecture for adaptive human-computer interface of a PT operation platform based on context-awareness. This architecture will form the basis of design for such an interface. This paper describes components, key technologies, and working principles of the architecture. The critical contents covered context information modeling, processing, relationship establishing between contexts and interface design knowledge by use of adaptive knowledge reasoning, and visualization implementing of adaptive interface with the aid of interface tools technology.

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