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We describe an approach to building integrated performance support systems by using model-based task tracking to link performance support tools to video-based organizational memory systems, enabling contextually appropriate help and advice as well as proactive critiquing. PRELUDE Over the past several years we have developed a family c6 hypermedia(More)
Producing high-quality, comprehensible user intetices is a difficult, labor-intensive process that requires experience and judgment. In this paper, we describe an approach to assisting this process by using explicit models of the user's task to drive the interface design process. The task model helps to ensure that the resulting interf%ce directly and(More)
Producing high-quality, comprehensible human interfaces is a difficult, labor-intensive process that requires experience and judgment. In this paper, we describe an approach to assisting this process by using explicit models of the user's task to drive the interface design and to serve as a functional component of the interface itself. The task model helps(More)
Companion Cognitive Systems is a cognitive architecture inspired by natural intelligent systems. In this paper, we describe seven design goals of Companions, relate them to properties of human reasoning, and discuss their implications. We present our experiences in developing and experimenting with Companions so far, and the challenges that remain.
Case-based retrieval and other decision support systems typically exist separately from the tools and tasks they support. Users are required to initiate searches and identify target case features manually, and as a result the systems are not used to their full extent. We describe an approach to integrating an ASK system—a type of video case library—with a(More)
Envisioning has been used extensively to model behavior of physical systems. Envisioning generates the qualitatively distinct possible behaviors without numerically simulating every possible set of input conditions and model parameters. This paper applies envisioning to analyze course of action (COA) diagrams to determine the qualitatively distinct outcomes(More)
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