How can you translate complex information in realtime from one computer language into another? In avirtual database a variety of databases form asystem. For the integration of a new database withdifferent language into the collective a logic has totranslate the information. Thispractical work is part of the Edutella project whichhas the aim to create a peer-to-peer network forstoring, querying, exchanging and processing anykinds of RDF metadata. The focus is on thedevelopment of a wrapper module for the Rssdbdatabase. This wrapper provides the features fortranslating Edutella queries into the local languageof Rssdb and for translating back the results fromRssdb. The author David Kuhn describes how thistranslation even works in real time efficiently. Thealgorithm is based on a decision tree. This treedecompiles the information piece by piece andconstructs it again in the target language. Thedecision tree allows the process to be very fast evenfor information with discretionary deeply nesting.This book is interesting for developers who have totranslate information from one computer language intoanother very fast.