Automatic component composition is a way to achieve self-customizable systems that are able to adapt themselves through structural configuration to changing conditions in their environment. In this paper, we propose an automatic composition strategy for multi-flow architectures with hierarchically composable components. Our composition strategy takes automatic decisions for the composition of a target that is specified through a set of required properties imposed over its given structural constraints. The composition decisions are taken knowing the properties provided by individual available components. Properties characterize functional or non-functional aspects of a component. The composition strategy is driven by a mechanism of propagation of required properties, detailed in this paper.
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