Sharing, reuse, and adaptivity are the key to efficient sustainable development, i.e. continuous long-term usability of document content. They need to be supported by tools and methods taking into account the semantic structure of a document in order to facilitate adaptivity and change management.
A particular issue in reuse and change management is the use of variants to handle consistent variations of documents, e.g. translations into different natural languages. In order to overcome the often found copy-and-paste style of reuse, the management of document variants have to be integrated into markup languages and document processing tools in order to encourage the integrated development of variants.