80
P.A. Bernstein, S. Melnik: Meta Data Management,
ICDE'04 Boston
The Match “Operator”
lSchema matching
(mapping discovery)
ŘGiven
two schemas, return correspondences that specify pairs of related
elements
lSemantic Mapping
(query discovery)
ŘGiven
correspondences between two schemas, return an expression that translates
instances of one schema into instances of the other.