Calculation of the User Ability Profile in Disability Situations
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The abilities profile represents the physical, cognitive and perceptual properties of the individual. This type of profile is used in the adaptive system dedicated to persons with disabilities to adapt the content, presentation and the interaction modalities to the user. In most existing works, the abilities profile is static, whereas the abilities can be altered by the situation of the individual and his environment. This article focuses on the calculation of the abilities profile in disturbance situation, such as the fatigue, cognitive overload or noise. In this framework, our objective is to determine the operational capacities of an individual by considering his theoretical capacities and the disturbances, related to his state and/or his environment, which can alter his capacities. By theoretical capacity, we mean the capacity of the individual in optimal conditions, without any disturbance. To achieve this goal, we propose models of representation of profile capacities and disturbances as well as a method that calculates the impact of the disturbances on the capacities by considering their weakening and the forgetfulness of disturbances.
KeywordsCapacity profile Disturbance situation Adaptive system
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