Publication statistics

Pub. period:1993-1996
Pub. count:4
Number of co-authors:6



Co-authors

Number of publications with 3 favourite co-authors:

Takeshi Yokota:3
Ryutaro Kawano:2
Ryuji Kubota:2

 

 

Productive colleagues

Hiroshi Ujita's 3 most productive colleagues in number of publications:

Ryutaro Kawano:4
Takeshi Yokota:3
Keiko Mutoh:3
 
 
 
Jul 13

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-- Jakob Nielsen, Designing Web Usability, p. 22.

 
 

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Hiroshi Ujita

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Publications by Hiroshi Ujita (bibliography)

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1996
 
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Ujita, Hiroshi, Yokota, Takeshi, Tanikawa, Naoshi and Mutoh, Keiko (1996): Computer Aided Instruction Systems for Plant Operators. In International Journal of Human-Computer Studies, 45 (4) pp. 397-412.

Two types of CAI systems have been developed which make it possible to provide consistent education in plant operation for personnel from novice to expert levels and on to professionals like shift supervisors. The main features are summarized as follows. (1) Realization of an attractive feature, representing the fusion of education and amusement. A two layer structure was adopted, so operators can get systematic knowledge spontaneously, while enjoying the task. In the lower layer which is hidden from the operators, an education scenario was created to provide overall knowledge for the plant operators, such as system configurations and functions, and normal and emergency operation procedures. In the upper layer which is shown to operators, an attractive story with a game feeling was constructed corresponding to the education scenario. (2) Satisfaction of intrinsic motivation, representing instruction according to the learners' level. The student model is derived from a hierarchical function model which is a goal-oriented mental model of a plant operator. It is common to both the teaching course for presenting text knowledge of emergency procedures and the indicating course for actual plant behaviour and procedures using the plant simulator. The understanding level of each node (element of a function) in the model is evaluated by personal history conditions calculated from both the tutoring record of the node and the understanding level of the connecting nodes.

© All rights reserved Ujita et al. and/or Academic Press

1995
 
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Ujita, Hiroshi, Yokota, Takeshi and Tanikawa, Naoshi (1995): An Intelligent Computer Aided Instruction System for Plant Operators to Study Emergency Procedures. In: Proceedings of the Sixth International Conference on Human-Computer Interaction July 9-14, 1995, Tokyo, Japan. pp. 1013-1018.

Intelligent CAI system has been developed which makes it possible to provide consistent education in plant operation and also plant behavior for professionals like shift supervisors. Satisfaction of intrinsic motivation was tried by representing instruction according to the learners' level. The student model, which is common to teaching course for presenting text knowledge of emergency procedures and the indicating course for actual plant behavior and procedures using the plant simulator, was derived from a hierarchical function model which is a goal oriented mental model of a plant operator. The understanding level of each node (element of a function) in the model is evaluated by personal history conditions calculated from both the tutoring record of the node and the understanding level of the connecting nodes.

© All rights reserved Ujita et al. and/or Elsevier Science

 
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Mutoh, Keiko, Kawano, Ryutaro, Ujita, Hiroshi, Yokota, Takeshi and Kubota, Ryuji (1995): Development of an Attractive Computer Assisted Instruction System for Plant Operators. In: Proceedings of the Sixth International Conference on Human-Computer Interaction July 9-14, 1995, Tokyo, Japan. pp. 1039-1044.

A new concept CAI system for nuclear power plant operators has been developed. The main focus of the development was on operator's motivation. The system was accepted considering attractiveness with some requirements of operators extracted to improve the system. The need for voluntary learning is growing ever greater for operators to maintain their skills. We will add some functions to improve the CAI system to help elicit the operator's voluntary learning.

© All rights reserved Mutoh et al. and/or Elsevier Science

1993
 
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Ujita, Hiroshi, Kubota, Ryuji, Ikeda, Kouji and Kawano, Ryutaro (1993): Cooperative Work Analysis of Plant Operator Crew. In: Proceedings of the Fifth International Conference on Human-Computer Interaction 1993. pp. 955-960.

Elucidation of crew communication and collaboration aspects is required to improve the man-man interface which supports plant operators' diagnoses and decisions. Experiments to clarify operator performance under emergency situations were performed using a training simulator. The operator performance was evaluated from the viewpoint of crew communications. Six approaches have been tried to evaluate operator performance: cognition-communication flow, movement flow, position covered, task gain evaluation, information effectively exchanged, and communication correlation aspect. Crew communications and collaborations in emergency situations were categorized into four types: Top Down, Bottom Up, Tight Coupling, and Loose Coupling.

© All rights reserved Ujita et al. and/or Elsevier Science

 
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Changes to this page (author)

29 Jun 2007: Modified
29 Jun 2007: Modified
29 Jun 2007: Modified
28 Apr 2003: Added

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Page maintainer: The Editorial Team
URL: http://www.interaction-design.org/references/authors/hiroshi_ujita.html

Publication statistics

Pub. period:1993-1996
Pub. count:4
Number of co-authors:6



Co-authors

Number of publications with 3 favourite co-authors:

Takeshi Yokota:3
Ryutaro Kawano:2
Ryuji Kubota:2

 

 

Productive colleagues

Hiroshi Ujita's 3 most productive colleagues in number of publications:

Ryutaro Kawano:4
Takeshi Yokota:3
Keiko Mutoh:3
 
 
 
Jul 13

A general principle for all user interface design is to go through all of your design elements and remove them one at a time. If the design works as well without a certain design element, kill it.

-- Jakob Nielsen, Designing Web Usability, p. 22.

 
 

Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !

 
 

Our Latest Books

Kumar and Herger 2013: Gamification at Work: Designing Engaging Business Software...
by Janaki Mythily Kumar and Mario Herger

 
Start reading

Whitworth and Ahmad 2013: The Social Design of Technical Systems: Building technologies for communities...
by Brian Whitworth and Adnan Ahmad

 
Start reading

Soegaard and Dam 2013: The Encyclopedia of Human-Computer Interaction, 2nd Ed....
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

Help us help you!