The invention provides a method and apparatus for pipelining the transformation of information between heterogeneous sets of data sources. The invention avoids intermediate data staging by constructing metadata that allow the acquisition of data in an order that matches the order in which the target...http://www.google.ca/patents/US6449619?utm_source=gb-gplus-sharePatent US6449619 - Method and apparatus for pipelining the transformation of information between heterogeneous sets of data sources
