Story points as a measure of effort
In agile methodologies, the story point is used as a way to estimate the effort it would take to complete a piece of work. The inputs to estimate story points are the complexity of the task and the amount of times that the task must be executed.
During agile rituals (sometimes called meetings), the number of story points for a task is estimated by all the members of an agile team. The value of this estimation process is two fold.