document: Multi-step media adaptation : implementation of a knowledge-based engine Continuing changes in the domains of consumer devices and multimedia formats demand for a new approach to media adaptation . The publication of customized content on a device requires an automatic adaptation engine that takes into account the specifications of both the device and the material to be published . These specifications can be expressed using a single domain ontology that describes the concepts of the media adaptation domain . In this document , we provide insight into the implementation of an adaptation engine that exploits this domain knowledge . We explain how this engine , through the use of description matching and Semantic Web Services , composes a chain of adaptation services which will alter the original content to the needs of the target device .
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