Patent ID: 7404121

Claim:
A method for inferring relationships between test results, comprising: receiving sequential test data from a tester performing tests on a number of devices under test (DUTs), the sequential test data comprising a number of DUT identifiers, wherein ones of the DUT identifiers are followed by any test results associated with an identified DUT; upon receiving one of the DUT identifiers, determining if a data structure exists for the DUT identified by the one of the DUT identifiers; upon determining that the data structure does not exist, creating the data structure and associating i) any test results associated with the one of the DUT identifiers with ii) the data structure; and upon determining that the data structure exists, creating a child data structure, as a child of the data structure, and associating i) the any test results associated with the one of the DUT identifiers with ii) the child data structure, wherein the child data structure inferentially indicates that the test results associated therewith are retest results.