Coordinate indexing concepts and methods

<p dir="ltr">A special method of indexing documents in which, during retrieval at later stages, the combination or, in fact, the coordination of previously assigned terms is used, primarily relies on set theory and Boolean logic. The original name of this method is Post-Coordinate Indexing. The rapid increase in the volume of information, especially after World War II, led to the emergence of a new indexing method known as coordinated indexing. In fact, the history of this indexing technique dates back to the 1950s.</p>