3. The computer-implemented process of claim 2 , wherein processing the received input stream of complex multidimensional expression queries through the trusted multidimensional expression engine further comprises: processing the received input stream of complex multidimensional expression queries through a progressive set of test cases; determining whether a query of the received input stream fails a semantic test case; responsive to a determination that the query fails the semantic test case, identifying a failing test case and associated query; and responsive to a determination that the failing test case requires correction to the failing test case, updating the failing test case.
3. The computer-implemented process of claim 2 , wherein processing the received input stream of complex multidimensional expression queries through the trusted multidimensional expression engine further comprises: processing the received input stream of complex multidimensional expression queries through a progressive set of test cases; determining whether a query of the received input stream fails a semantic test case; responsive to a determination that the query fails the semantic test case, identifying a failing test case and associated query; and responsive to a determination that the failing test case requires correction to the failing test case, updating the failing test case. 4. The computer-implemented process of claim 3 , wherein updating the failing test case further comprises: determining whether to update the trusted multidimensional expression engine; and responsive to a determination to update the trusted multidimensional expression engine, updating the trusted multidimensional expression engine.