Investment / Trading systems are computer programs that send orders in the capital market. It's technology architecture is designed to support a decision system that sends signals to enter and exit on asset positions (buy and / or sell).
What ensures investment efficiency is the ability of these systems on making profit in the long run with the maximum possible security. The big question when we consider these systems is the ability to evaluate the performance and rank it as sufficient to ensure efficient management.
That is, put another way, how to separate systems that lack credibility on signals generating of which represent a significant result.