| Evaluation and Analysis of Eye Gaze Interaction |
31 JUL 2001 |
21 pages |
| Authors:
Linda E. SIbert; James N. Templeman; Robert J. Jacob; NAVAL RESEARCH LAB WASHINGTON DC
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 | Eye gaze interaction can provide a convenient and natural addition to user-computer dialogues. We have previously reported on our interaction techniques Using eye gaze. In this report, we assess the effectiveness of our approach in a controlled setting. We present two experiments that compare our eye gaze object selection technique with conventional selection by mouse. The results show that for a simple task, it takes 60% less time to select ... |
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| Toward Specification Techniques for Pre-Screen Projection and Other Next-Generation User |
25 SEP 95 |
16 pages |
| Authors:
Robert J. Jacob; TUFTS UNIV MEDFORD MA
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| We have investigated new languages for describing and implementing next-generation interfaces that might be used in 3-D visualization environments. Working with researchers at NRL Code 5513, we learned about the interfaces they are currently developing and are planning for future work. For current work we examined pre-screen projection and foot control; and we discussed future plans for research in 3-D manipulation, such as 3-D route planning and object-based 3- D ... |
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| Extending the User Action Notation (UAN) for Specifying Interfaces with Multiple Input Devices and Parallel Path Structure |
12 MAY 95 |
37 pages |
| Authors:
Lynn A. Dievendorf Jr.; Derek P. Brock Jr.; Robert J. Jacob; NAVAL RESEARCH LAB WASHINGTON DC
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| Many modern computer applications provide the user with a choice of several different methods of completing the same task. These options are afforded the user by the implementation of multiple input devices (e.g., a mouse and a keyboard) and keyboard shortcuts, or hot keys, into the interface. Although these options can be described by current interface specification methods, there is a need for a notation that can clearly represent this ... |
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| A Software Architecture for Adding New Interaction Techniques to a Command and Control Based Testbed |
25 MAR 94 |
30 pages |
| Authors:
James N. Templeman; Deborah Hix; Robert J. Jacob; NAVAL RESEARCH LAB WASHINGTON DC
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| The Human-Computer Interaction (HCI) Laboratory at the Naval Research Laboratory (NRL) is developing high-performance interactive computer systems for use in Naval command and control applications. New technology allows computerized systems to make greater use of a person's natural physical, perceptual, and cognitive skills. These systems make it faster and more straightforward for users to access and enter information within the context of time critical, real world situations. Our work focuses ... |
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| Developing a Software Engineering Methodology for Knowledge-Based Systems |
17 DEC 86 |
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| Authors:
Robert J. Jacob; Judith N. Froscher; NAVAL RESEARCH LAB WASHINGTON DC
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 | Current expert systems are typically difficult to change once these are built. This report describes a design methodology intended to make a knowledge-based system easier to change, particularly by people other than its original developer. The basic approach for solving this problem is to divide the information in a knowledge base and attempt to reduce the amount of information that each single knowledge engineer must understand before he can make ... |
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| Survey and Examples of Specification Techniques for User-Computer Interfaces |
30 APR 86 |
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| Authors:
Robert J. Jacob; NAVAL RESEARCH LAB WASHINGTON DC
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| Formal and semiformal specification techniques have been applied to many aspects of software systems. The module structure, the uses hierarchy, and the process structure of a system are examples of areas in which such techniques are useful; however, specification techniques have been less successful in describing the interface between a system and its user. This report provides a survey of techniques suitable for specifying the user interface of a system ... |
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