Many times when we set out to achieve a set objective. The conventional wisdom seems to be to set a goal. It seems to be the instinctive action. While goals setting is not bad. Approaching the set objective by building systems is more beneficial than the burst of energy that comes with aiming at a particular goal.
Systems is simply the set of habits, processes and strategies aimed at improvement, done daily or constantly.
As a software developer , building a world class software/company might be a goal, the system question would be what are you doing constantly to become a better developer or coder.
As a tailor, sewing amazing wedding gowns might be a goal, the system question would be what are you doing constantly to get better at sewing.
The truth is, a system in place beats spontaneous bursts of energy 99% of the time. Because you're devoted to continuous improvement.
Those who have a master of their finances know it's not owed to some momentary objective. It is a set of daily habits which include tracking expenses, savings, investing etc.
When the gaze is shifted from a momentary goal to a constant set of actions. The individual becomes better for it even long after the goal has been achieved.