Introduction - If you have any usage issues, please Google them yourself
Retrieval system based on integration of heterogeneous resources distributed over heterogeneous data sources for the object retrieval system, which can be invoked at the same time a unified search interface over the network databases and search engines, and be able to merge the various search results, along with submission to the information users, helping users to be retrieved in multiple databases and multiple databases at the same time get the results, avoiding the need to individually log on the database, enter the search terms of the trouble, easy to use, fast, allowing users to feel like the use of a a database.