Story points are a unit of measure for expressing an estimate of the effort required to fully implement a product backlog item or any other piece of work.

And what to do when these questions don’t really help

Scrum teams estimate both product backlog items and sprint user stories--but in distinct units and at separate times.

Fibonacci agile estimation quantifies the effort needed to complete a development task. Learn how to employ this method in your agile process.

Free scrum guide for agile scrum team. Learn about how agile estimation can be performed. More free scrum resources are available.

Discover agile estimation principles & planning methods for project success. Dive into uncertainty, valuable estimates & agile delivery processes.

From its origins to its significance, almost every popular notion about the famous Fibonacci sequence is wrong.

The planning fallacy is a phenomenon in which predictions about how much time will be needed to complete a future task display an optimism bias and underestimate the time needed. This phenomenon sometimes occurs regardless of the individual's knowledge that past tasks of a similar nature have taken longer to complete than generally planned. The bias affects predictions only about one's own tasks. On the other hand, when outside observers predict task completion times, they tend to exhibit a pessimistic bias, overestimating the time needed. The planning fallacy involves estimates of task completion times more optimistic than those encountered in similar projects in the past.