The ever growing diversity of document formats poses a serious challenge when downloading documents from the Internet. As long as the variety concerns unchanging, static types only, to guarantee future access poses the main problem (cf.Section 2.4). One of the revolutionary features of the medium Internet, of Hypermedia, however, is the possible interaction with the user.
Dynamic web-pages are the result of an interaction between a user and the service. Thereby, they offer access to a hidden database through an interface. By entering keywords and selecting special fields the database is queried for a corresponding dataset. Through these means, not only access is provided, but also the information on the resulting web-page is narrowed in scope, such that only to the user relevant information is returned. This puts the user in an active role.
When archiving the Internet, these dynamic types have to be addressed as well. Handling interactions in an appropriate way will be a major task to come.