Number of co-authors:4
Number of publications with 3 favourite co-authors:Lisbeth A. Mack:1Gary M. Olson:1Judith S. Olson:1
Pierre D. Wellner's 3 most productive colleagues in number of publications:Gary M. Olson:45Judith S. Olson:35William M. Newman:14
The moment clients realize that revisions are not an all-you-can-eat buffet, suddenly they realize they are not hungry.
-- Lester Beall
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Pierre D. Wellner
Publications by Pierre D. Wellner (bibliography)
Newman, William M. and Wellner, Pierre D. (1992): A Desk Supporting Computer-Based Interaction with Paper Documents. In: Bauersfeld, Penny, Bennett, John and Lynch, Gene (eds.) Proceedings of the ACM CHI 92 Human Factors in Computing Systems Conference June 3-7, 1992, Monterey, California. pp. 587-592.
Before the advent of the personal workstation, office work practice revolved around the paper document. Today the electronic medium offers a number of advantages over paper, but it has not eradicated paper from the office. A growing problem for those who work primarily with paper is lack of direct access to the wide variety of interactive functions available on personal workstations. This paper describes a desk with a computer-controlled projector and camera above it. The result is a system that enables people to interact with ordinary paper documents in ways normally possible only with electronic documents on workstation screens. After discussing the motivation for this work, this paper describes the system and two sample applications that can benefit from this style of interaction: a desk calculator and a French to English translation system. We describe the design and implementation of the system, report on some user tests, and conclude with some general reflections on interacting with computers in this way.
© All rights reserved Newman and and/or ACM Press
Wellner, Pierre D. (1991): The DigitalDesk Calculator: Tangible Manipulation on a Desk Top Display. In: Rhyne, James R. (ed.) Proceedings of the 4th annual ACM symposium on User interface software and technology Hilton Head, South Carolina, United States, 1991, Hilton Head, South Carolina, United States. pp. 27-33.
Today's electronic desktop is quite separate from the physical desk of the user. Electronic documents lack many useful properties of paper, and paper lacks useful properties of electronic documents. Instead of making the electronic desktop more like the physical desk, this work attempts the opposite: to give the physical desk electronic properties and merge the two desktops into one. This paper describes a desk with a computer-controlled camera and projector above it. The camera sees where the user is pointing, and it reads portions of documents that are placed on the desk. The projector displays feedback and electronic objects onto the desk surface. This DigitalDesk adds electronic features to physical paper, and it adds physical features to electronic documents. The system allows the user to interact with paper and electronic objects by touching them with a bare finger (digit). Instead of "direct" manipulation with a mouse, this is tangible manipulation with a finger. The DigitalDesk Calculator is a prototype example of a simple application that can benefit from the interaction techniques enabled by this desktop. The paper begins by discussing the motivation behind this work, then describes the DigitalDesk, tangible manipulation, and the calculator prototype. It then discusses implementation details and ends with ideas for the future of tangible manipulation.
© All rights reserved Wellner and/or ACM Press
Olson, Judith S., Olson, Gary M., Mack, Lisbeth A. and Wellner, Pierre D. (1990): Concurrent Editing: The Groups Interface. In: Diaper, Dan, Gilmore, David J., Cockton, Gilbert and Shackel, Brian (eds.) INTERACT 90 - 3rd IFIP International Conference on Human-Computer Interaction August 27-31, 1990, Cambridge, UK. pp. 835-840.
We review aspects of systems built for group work that allow real-time, concurrent editing of a single work object. Existing systems vary in both what group functions they offer users (e.g., whether simultaneous editing is possible or it must proceed one by one) and how these functions appear in the user interface (e.g. what signals are given to the user that the window is public or private). Design alternatives suggested by existing systems are analyzed in terms of their value for various phases of group work and their support for individuals' needs in coordinating their work.
© All rights reserved Olson et al. and/or North-Holland
Wellner, Pierre D. (1989): Statemaster: A UIMS Based on Statecharts for Prototyping and Target Implementation. In: Bice, Ken and Lewis, Clayton H. (eds.) Proceedings of the ACM CHI 89 Human Factors in Computing Systems Conference April 30 - June 4, 1989, Austin, Texas. pp. 177-182.
Most User Interface Management systems are state based and some use state transition diagrams for dialog specification. Although these diagrams have significant advantages, they suffer from drawbacks that make them impractical for the specification of complex user interfaces. Statecharts are a hierarchical extension of state transition diagrams and are well suited for specification of complex user interface dialogs. Statemaster is a UIMS implemented in C++ that uses statecharts for dialog specification. It has been successfully used both for rapid prototyping and target implementation of user interfaces. This paper describes the use of statecharts for dialog specification and the implementation of Statemaster.
© All rights reserved Wellner and/or ACM Press
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