Each group is then assigned a value, whether a size or a number, creating a scale. In affinity estimation, each story is grouped according to similar complexity. One of the first things a Dev team should do is set their scale through affinity estimating. Instead of wondering about the relationship between story point and time, ask yourself “what is my scale?” Getting Started: 3 Affinity Estimation Methods Rather they are a measure of complexity comparing stories to one another. Second, estimates in story points are not a measure of time. “Jim is taller than Sue” is a comparison “Jim is 5’11”” is an exact value. Therefore, story points are not an exact number but a comparison. In order for the answer to make sense, the person asking the question needs to have an idea of how tall Sue is. One estimate has no value alone it must be assessed in relation to other estimates. Before we get to specific tactics, let’s discuss two common mistakes : believing that the point is an exact number and relating a point to a unit of time. ![]() We’ve listed a few of our favorite ways to do so below. In order to start estimating or sizing with story points, you have to set your scale first. Estimating is a valuable tool because it enables Product Owners and the rest of the team to have a good idea of the number of stories that can fit in the upcoming Sprint in addition to having a method in which to describe the work to stakeholders. Sizing with story points is an important Agile practice because it informs the team of the complexity of each story. “Yes, but how do we get started? I mean, how do we know what a 1 or a 2 is?” One of the team members remembered story points during their Scrum training. ![]() It was their first backlog grooming session and they needed to prioritize their newly written user stories. Once upon a time, there was a Scrum team that was new to the methodology.
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