1. A computer system to invoke multiple executions of an analytical task in response to receiving a request for analytical information from a front-end software application, wherein the computer system is programmed to: use the request to identify a first input value; invoke a first execution of the analytical task by providing the first input value to a first analytical engine; identify a second input value; and invoke a second execution of the analytical task by providing both the first and second input values to a second analytical engine.