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Frank Halasz

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Frank Halasz

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Publications by Frank Halasz (bibliography)

» 1992 «

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Elrod, Scott, Bruce, Richard, Gold, Rich, Goldberg, David, Halasz, Frank, Janssen, William, Lee, David, McCall, Kim, Pedersen, Elin Ronby, Pier, Ken, Tang, John C. and Welch, Brent (1992): Liveboard: A Large Interactive Display Supporting Group Meetings, Presentations and Remote Collaboration. 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. 599-607. Available online

“This paper describes the Liveboard, a large interactive display system. With nearly one million pixels and an accurate, multi-state, cordless pen, the Liveboard provides a basis for research on user interfaces for group meetings, presentations and remote collaboration. We describe the underlying hardware and software of the Liveboard, along with several software applications that have been developed. In describing the system, we point out the design rationale that was used to make various choices. We present the results of an informal survey of Liveboard users, and describe some of the improvements that have been made in response to user feedback. We conclude with several general observations about the use of large public interactive displays.”

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» 1991 «

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Marshall, Catherine C., Halasz, Frank, Rogers, Russell A. and Janssen, William (1991): Aquanet: A Hypertext Tool to Hold Your Knowledge in Place. In: Walker, Jan (ed.) Proceedings of ACM Hypertext 91 Conference December 15-18, 1991, San Antonio, Texas. pp. 261-275. Available online

“Hypertext systems have traditionally focused on information management and presentation. In contrast, the Aquanet hypertext system described in this paper is designed to support knowledge structuring tasks. Aquanet is a browser-based tool that allows users to graphically represent information in order to explore its structure. In this paper, we discuss our motivations for developing Aquanet. We then describe the basic concepts underlying the tool and give an overview of the user interface. We close with some brief comments about our initial experiences with the tool in use and some of the directions we see the Aquanet research moving in the near future.”

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Streitz, Norbert A., Halasz, Frank, Ishii, Hiroshi, Malone, Thomas W., Neuwirth, Chris and Olson, Gary M. (1991): The Role of Hypertext for CSCW Applications. In: Walker, Jan (ed.) Proceedings of ACM Hypertext 91 Conference December 15-18, 1991, San Antonio, Texas. pp. 369-377. Available online

» 1990 «

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Halasz, Frank (ed.) Proceedings of the 1990 ACM conference on Computer-supported cooperative work October 07 - 10, 1990, Los Angeles, California, United States.

» 1989 «

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Halasz, Frank and Meyrowitz, Norman (eds.) Proceedings of ACM Hypertext 89 Conference November 5-8, 1989, Pittsburgh, Pennsylvania.

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Akscyn, Robert, Halasz, Frank, Oren, Tim, Riley, Victor and Welch, Lawrence (1989): Interchanging Hypertexts. In: Halasz, Frank and Meyrowitz, Norman (eds.) Proceedings of ACM Hypertext 89 Conference November 5-8, 1989, Pittsburgh, Pennsylvania. pp. 379-381.

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Halasz, Frank, McCracken, Donald, Meyrowitz, Norman, Pearl, Amy and Shneiderman, Ben (1989): Confessions -- What's Wrong with Our Systems. In: Halasz, Frank and Meyrowitz, Norman (eds.) Proceedings of ACM Hypertext 89 Conference November 5-8, 1989, Pittsburgh, Pennsylvania. p. 399.

» 1987 «

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Halasz, Frank (1987): Reflections on NoteCards: Seven Issues for the Next Generation of Hypermedia Systems. In: Weiss, Stephen and Schwartz, Mayer (eds.) Proceedings of ACM Hypertext 87 Conference November 13-15, 1987, Chapel Hill, North Carolina. pp. 345-365.

“NoteCards is a general hypermedia environment designed to help people work with ideas. Its intended users are authors, designers, and other intellectual laborers engaged in analyzing information, designing artifacts, and generally processing ideas. The system provides these users with a variety of hypermedia-based tools for collecting, representing, managing, interrelating, and communicating ideas. This paper presents the NoteCards system as a foil against which to explore some of the major limitations of the current generation of hypermedia systems. In doing so, this paper highlights seven of the major issues that must be addressed in the next generation of hypermedia systems. These seven issues are: search and query, composite nodes, virtual structures, computational engines, versioning, collaborative work, and tailorability. For each of these issues, the papers describes the limitations inherent in NoteCards and the prospects for doing improving the situation in future systems.”

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Trigg, Randall H., Moran, Thomas P. and Halasz, Frank (1987): Adaptability and Tailorability in NoteCards. In: Bullinger, Hans-Jorg and Shackel, Brian (eds.) INTERACT 87 - 2nd IFIP International Conference on Human-Computer Interaction September 1-4, 1987, Stuttgart, Germany. pp. 723-728.

“NoteCards is an information structuring system developed in the Intelligent Systems Lab at Xerox PARC. A major design goal has been that NoteCards be an adaptable system, that is, tunable or customizable by users for particular applications and styles of use. In this paper, we describe four ways that a system can be adaptable: (1) it can have a flexible underlying conceptual model, (2) its behavior can be parametrized, (3) it can be integratable with other facilities, and (4) it can be tailorable, i.e. users themselves can add new functionality. We discuss the adaptability of NoteCards according to each of the above criteria. Finally, an example of large scale tailoring in NoteCards is presented.”

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Halasz, Frank, Moran, Thomas P. and Trigg, Randall H. (1987): NoteCards in a nutshell. In: Graphics Interface 87 (CHI+GI 87) April 5-9, 1987, Toronto, Ontario, Canada. pp. 45-52.

» 1983 «

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Halasz, Frank and Moran, Thomas P. (1983): Mental Models and Problem Solving in Using a Calculator. In: Smith, Raoul N., Pew, Richard W. and Janda, Ann (eds.) Proceedings of the ACM CHI 83 Human Factors in Computing Systems Conferenc December 12-15, 1983, Boston, Massachusetts, United States. pp. 212-216.

“It has often been suggested that users understand and reason about complex system on the basis of a mental model of the system's internal mechanics. This paper describes an empirical study of how mental model knowledge is used in operating a stack calculator. One group of naive users were taught step-by-step procedures for solving typical problems on the calculator. A second group of naive users were taught the same procedures in conjunction with an explicit model of the calculator's stack mechanism. The users then solved problems on the calculator while thinking aloud. Analysis of the performance of these two groups indicates that the model had little effect in routine problem solving situations. But significantly improved performance for novel problems. Analyses of the think-aloud protocols indicate that the users employed five distinct modes of problem solving: skilled methods, problem reduction strategies, a conversion algorithm, model-based problem space search, and methods-based problem space search. Skilled methods, problem reduction strategies and the conversion algorithm were used for solving more routine problems and did not necessarily depend on mental model knowledge. Problem space search was used in the novel problems. For the model users, the states and operations of the stack mechanism served as the problem space to be searched for a problem solution. In contrast, the no-model users employed a less effective search strategy based on the recombination of pieces of known procedures. These results indicate that explicitly teaching naive users an appropriate mental model of a system can provide a psychologically effective and robust basis for operating the machine.”

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» 1982 «

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Halasz, Frank and Moran, Thomas P. (1982): Analogy Considered Harmful. In: Nichols, Jean A. and Schneider, Michael L. (eds.) Proceedings of the SIGCHI conference on Human factors in computing systems March 15-17, 1982, Gaithersburg, Maryland, United States. pp. 383-386.

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