The problem of organizing data into a single database is partly solved with the help of DMS, CRM and special-purpose DBMS. However, the larger the enterprise and the more diverse its activity, the more complicated it is to process information from various sources. Documents on a disk, 1C, Oracle and various informational systems - the list can go on forever. Archives of html-pages, electronic correspondence and even ICQ logs have lately grown to create a substantial "informational sector" that can be easily connected to the main data warehouses within any large company. Based on the analysis of diverse sources of entering and storing textual data, two major "dataware" problems can be derived. They are the unstructured nature of information and its search. In principle, these problems are closely interrelated. Once you acquire a good full text search system of searching information in various sources, you can dramatically systematize the results you obtain.

When there is a problem, there is a solution. They are corporate information retrieval search systems working with various sources of knowledge, both on the user computer, as well as in the local network. Their main purpose is to perform quick and accurate search of documents in large data volumes. Such special-purpose information retrieval programs are in the spotlight of this article. We will not deviate to various DMS search engines elements, however splendid they may be. After all, there is no way to compare home cinemas and TV sets built into, say, refrigerators.