Célia Martinie

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Task analysis can be considered as a fundamental component of user centered design methods as it provides a unique way of analyzing in a systematic way users' roles and activities. A widely used way of storing the information gathered during that phase in a structured and exhaustive way is to build task models which are then amenable to verification of(More)
Along tasks analysis and modeling history it has been demonstrated by experience that task modeling activities become cumbersome when performed on large, real-life systems. However, one of the main goals of task models is to provide designers with a structured and complete description of the users tasks especially when these user tasks are numerous and/or(More)
Evolution in the context of use requires evolutions in the user interfaces even when they are currently used by operators. This paper proposes a model-based approach to support proactive management of context of use evolutions. By proactive management we mean mechanisms in place to plan and implement evolutions and adaptations of the entire user interface(More)
Operation of safety critical systems requires qualified operators that have detailed knowledge about the system they are using and how it should be used. Instructional Design and Technology intends to analyze, design, implement, evaluate, maintain and manage training programs. Among the many methods and processes that are currently in use, the first one to(More)
Designing systems in such a way that as much functions as possible are automated has been the driving direction of research and engineering both in aviation and in computer science for many years. In the 80's many studies (e.g. [1] and [8] related to the notion of mode confusion) have demonstrated that fully automated systems are out of the grasp of current(More)
This paper offers a contribution for engineering interaction techniques by proposing a model-based approach for supporting usability evaluation. This approach combines different techniques including <i>formal analysis</i> of models, <i>simulation</i> and, in particular, <i>analysis of log</i> data in a model-based environment. This approach is integrated in(More)
Task models are a very powerful artefact describing users' goals and users' activity and contain numerous information extremely useful for designing usable interactive application. Indeed, task models is one of the very few means for ensuring effectiveness of the application i.e. that the application allows users to reach their goals and perform their(More)
The work presented in this paper is based on a synergistic approach [1] integrating models of operators' tasks (described using the HAMSTERS notation) with models of the interactive system (described using the ICO notation) they are using. This synergistic approach makes it possible to bring together two usually independent (but complementary)(More)