The traditional file system is an integral part of how users interact with their desktop computers: To a great extent, user content (e.g. business documents, holiday pictures, project plans, etc.) is stored in a more or less unstructured manner. In the file system, this content is organized only using hierarchical directories and file names, which lack advanced expressivity in comparison to ontology-based classification schemes. As a result, traditional file systems do not provide sufficient means for organizing and annotating such content, especially when multiple users access the same file inventory. In this position paper, we introduce the SemDAV project, in which we aim to research technologies that are able to semantically enrich storage of such unstructured content. We give an outline of the SemDAV project, explain the motivation behind it, and discuss how SemDAV can contribute to the Semantic Desktop movement.

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