Abstract: Methods and apparatus for versioning an electronic document based on XML and methods and apparatus for providing an updated electronic document based on XML can use a version value. The electronic document being managed can use a syntax defining a structure of the structured electronic document. One method is characterized in that date information of when a content of the electronic document is changed is used as a version value.

Abstract: A method for creating a structured document, wherein a structured document comprises a plurality of content elements wrapped in pairs of tags, includes parsing a document of a particular type containing content into a plurality of content elements; and for each content element, suggesting an optimal tag according to a tag suggestion procedure. The tag suggestion procedure includes providing sample data which has been converted into a structured sample document; deriving a set of tags from the structured sample document; evaluating the set of tags according to tag suggestion criteria to determine an optimal tag for the content element. The optimal tag may be a single tag or a pattern of tags which maximizes a similarity function with patterns found in the sample data.

Abstract: A method of defining a synchronized slideshow is disclosed. The method includes providing at least one body element of a slideshow, where the body element is at least one selected from a group of a master audio element to allow audio playback with or without synchronized images and a master image element to allow playback of images with a specified timing, the master image element being associated with at least one image element having a location.