Extensible markup languages and traditional abstracting and indexing strategies

Object oriented coding languages are used to more accurately label and search for content embedded in electronic texts. An object can be a graphic, a row of specific data housed in a table, a written text, or any other piece of information that conveys meaning. XML, XLink and RDF are second-generation object-oriented coding languages and tools derived from SGML. I illustrate how these object-oriented languages can effectively deploy the indexing techniques and systems traditionally used by information professionals.