Piloting in service delivery

A method for comparing systems comprising:

• running, simultaneously, a first system and a second system, wherein the first system and the second system process events;
• collecting first data from the first system based on the processing of the events;
• collecting second data from the second system based on the processing of the events, wherein the second system is includes at least one feature different than the first system;
• and
• performing a sequential probability ratio test based on the first data and the second data.

A computer program product for comparing systems, the computer program product comprising:

• a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising:
• computer readable program code configured to run, simultaneously, a first system and a second system, wherein the first system and the second system process events;
• computer readable program code configured to collect first data from the first system based on the processing of the events;
• computer readable program code configured to collect second data from the second system based on the processing of the events, wherein the second system is includes at least one feature different than the first system;
• and
• computer readable program code configured to perform a sequential probability ratio test based on the first data and the second data.