Abstract: A highly portable user-friendly development environment is provided that can enable the creative design of custom electronic presentations. Users can design their own custom presentations from a storyboard document, and collaborate with others during the development process. The document-based authoring environment uses a standard word processing document and the structure and content of the presentation can be defined using constructs. The development of presentations can take place in the cells of an electronic table of the word processing document. The constructs are specified in connection with the table, and a build process can process the document and generate a presentation based on the constructs and the content in the table. This document-based authoring environment can expand the possibilities of e-learning course development beyond conventional database development environments.

Abstract: A highly portable user-friendly development environment is provided that can enable the creative design of custom electronic presentations. Users can design their own custom presentations and even their own custom approach for making software development a rational industrial process. The document-based authoring environment uses a standard word processing document, which is controlled by a wizard. The development of presentations can take place in the cells of an electronic table of the word processing document. This document-based authoring environment can expand the possibilities of e-learning course development beyond conventional database development environments.

Abstract: Techniques are provided for synchronizing audio and visual content. A multiple audio language product can be produced containing a single video file that is automatically synchronized to whichever audio the viewer selects. The audio streams and video streams are processed into a plurality of segments. If, for example, an audio stream is selected that corresponds to a particular language, which is not the original audio stream that the video was synchronized to, then the duration of each audio segment in the selected stream can be compared with the duration of each segment in the original audio stream. The number of frames in a segment of the video stream can be adjusted based on the comparison. If the playback duration of the selected audio segment is greater than the corresponding original audio segment, one or more frames in the video segment can be repeated.

Abstract: Techniques are provided for identifying reusable content in an electronic presentation. An electronic presentation can be developed that has electronic content. Reusable content that provides information about concepts appearing the electronic presentation or in another electronic presentation can be classified. In response to a request for the reusable content, matching content can be identified, filtered and an appropriate subset of the matching content can be provided.