Raymonde Guindon

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This study shows that top-down decomposition is problematic in the early stages of design. Instead, an opportunistic decomposition is better suited to handle the ill-structuredness of design problems. Designers are observed interleaving decisions at various levels of abstraction in the solution decomposition. The verbal protocols of three professionals(More)
User-adviser dialogues were collected in a typed Wizard-of-Oz study (=man-behind-the-curtain study*). Thirty-two users had to solve simple statistics problems using an unfamiliar statistical package. Users received help on how to use the statistical package by typing utterances to what they believed was a computerized adviser. The observed limited set of(More)
Key findings from empirical studies—early design is opportunistic; critical role of pictures in design conception; impact of various cognitive limitations—have very effectively determined requirements and design for a set of tools to support early design. Key design features of the tools include respectively: (1) The (simultaneous) display of(More)
Our goal is to construct components of convivial computer systems which give people who use them the greatest opportunity to enrich their environments with the fruits of their vision. Constrained design processes are a means of resolving the conflict between the generality, power and rich functionality of modern computer systems, and the limited time and(More)
FOCUSING AND ANAPHORA RESOLUTION Novice users engaged in task-oriented dialogues with an adviser to learn how to use an unfamiliar statistical package. The users', task was analyzed and a task structure was derived. The task structure was used to segment the dialogue into subdialogues associated with the subtasks of the overall task. The representation of(More)
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