This article addresses the utilization of the component-based approach for building and executing a distributed application that can offer services over a set of heterogeneous and possibly volatile devices. We propose to rely on a hierarchical component model and present a method for distributing a component that makes the set of its interfaces available everywhere. The runtime system associated with this model allows disconnections of devices to be reflected on the architecture of the component by disabling some of its interfaces while allowing it to perform in a degraded mode.