To facilitate the subsequent retrieval of information, it is necessary to
tag content as data and information are added into the database or KM system.
This can be done by creating a web interface through which a user can submit
a document to the system. The user will then be asked to answer a series of
questions about the document. Through the answers provided by the user, the
document will be properly tagged or categorized, which will facilitate subsequent
search and retrieval. This is achieved through what is termed XML indexing.