A metadata model for capturing presentations

We describe the design of a metadata model for capturing presentations developed as part of the VACE project (video and audio capturing and embedding). VACE is a modular, open, distributed framework for capturing presentations like lectures by using standard presentation and publishing tools for different media types. Different media formats can be used in one recording session in order to suit the needs of different presentation types, e.g. slides plus the talk of a lecturer. Metadata are necessary to combine these media data in an efficient way. The combination of content based and synchronisation metadata is utilized for the integration of recorded material e.g. in Web based learning systems, to provide navigation and search functions but can also be used for other post production purposes, e.g. video editing or DVD authoring.