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This paper presents a novel approach to the design of self-adaptive service-oriented applications based on a new model called service tiles. The approach allows designers to develop a service-oriented system by building an assembly of component services that accomplishes the given goal. The assembly is computed automatically starting from the specification of a subset of the whole system, a few constraints, and the goals the application should fulfill. An application designed according to the service-tile model can also dynamically self-adapt by replacing, in part or entirely, services in the assembly whenever they fail or the application context changes.
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