We-Met(Window 13nvirontnent-Meeting Enhancement Tools) is a prototype pen-based tool designed to support both the communication and information retrieval needs of stnall group meetings.The first part of this paper describes We-Met and the rationale for its design, the second discusses findings from an empirical study of the use of We-Met for group communication, ami the third discusses findings from a study of the search and retrieval of information from non-computer based meetings conducted to provide insight into how to facilitate these activities in We-Met. 'Ile paper identifies potential comtnunication process gains due to the pen-based interface style, opportunities for the facilitation of information retrieval in a pen-based tool, and functionality/interface challenges in the design of a tool to support small group mwt i rigs.
This paper presents a taxonomy for user interface techniques which is useful in understanding direct manipulation interfaces. The taxonomy is based on the way actions and objects are specified in the interface. We suggest that direct manipulation is a characteristic shared by a number of different interface techniques, rather than a single interface style. A relatively new interface method, gesture, is also described in terms of the taxonomy and some observations are made on its potential.
Recently there has been increasing attention to character recognition/graphical user interfaces under the name of “gesture input”. This technique actually has a long history: “sketch recognition” interfaces of 15 or more years ago were highly praised [Applicon 73], and user interfaces using handwriting input before the wide use of text keyboards were one of the first research goals in computer science [Bledsoe 59]. The underlying character and symbol recognition technologies have been a major research area in their own right since the early 1950s [Suen 80].
The last two years have seen an upsurge in the number of developments in this area, both from commercial companies attempting to exploit new character and symbol recognition technologies, [CIC 85] [Pencept 84] [Cooper 82] and from researchers starting from fundamental questions in user interactions [Buxton 86] [Wolf 86]. However, one question still remains: “Why has this set of techniques had so little impact on user interface design practice, despite its long history and promise?” This panel discussion should give many answers to this question.
Panelists include the leading commercial developers of handwriting input products, well-known researchers in the psychological aspects of graphical user interactions, and representatives of the research community for character recognition.
The issue of supporting this type of interface is very timely: recent standardization efforts such as PHIGS and GKS for graphics interactions are known to have the unfortunate side effects of excluding some of the current user interface designs using this class of technology [10].
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