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Using timed automata formalism for modeling and analyzing home care plans

Abstract : In this thesis we are interested in the problems underlying the design and the management of home care plans. A home care plan defines the set of medical and/or social activities that are carried out day after day at a patient's home. Such a care plan is usually constructed through a complex process involving a comprehensive assessment of patient's needs as well as his/her social and physical environment. Specication of home care plans is challenging for several reasons: home care plans are inherently nonstructured processes which involve repetitive, but irregular, activities, whose specification requires complex temporal expressions. These features make home care plans difficult to model using traditional process modeling technologies. First, we present a DSL (Domain Specific Language) based approach tailored to express home care plans using high level and user-oriented abstractions. DSL enables us through this thesis to propose a temporalities language to specify temporalities of home care plan activities. Then, we describe how home care plans, formalized as timed automata, can be generated from these abstractions. We propose a three-step approach which consists in (i) mapping between elementary temporal specifications and timed automata called Pattern automata, (ii) combining patterns automata to build the activity automata using our composition algorithm and then (iii) constructing the global care plan automaton. The resulting care plan automaton encompasses all the possible allowed schedules of activities for a given patient. Finally, we show how verification and monitoring of the resulting care plan can be handled using existing techniques and tools, especially using UPPAAL Model Checker.
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Kahina Gani. Using timed automata formalism for modeling and analyzing home care plans. Other [cs.OH]. Université Blaise Pascal - Clermont-Ferrand II, 2015. English. ⟨NNT : 2015CLF22628⟩. ⟨tel-01330752⟩

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