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Questions tagged [story-points]

For questions about applying or interpreting relative measures of work-effort, known as "story points," to user stories or project milestones.

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149
votes
18answers
88k views

Why use story points instead of hours for estimating?

After using hours to estimate our projects for a long time and rarely coming within 20% of actual "work-to-ship," I have been told by a handful of people that "points" work a lot better at gauging the ...
25
votes
7answers
5k views

Why use both story points and hours?

I'm a new scrum master for a team that is using story point estimation and hours. We do story points first during grooming and then hours during planning. I always thought of story points as being ...
21
votes
3answers
9k views

In Scrum, how to estimate research stories?

In our Scrum team, when there is uncertainty about a story or the team is not sure about how to implement it, we take up a research story first. Based on the findings of this research story, we are ...
16
votes
6answers
3k views

In scrum should incomplete stories be re-estimated or does the original estimate get burned down when it's finally completed?

If I have a story that's been estimated at 10 story points and we don't manage to complete it in a sprint how do you handle estimates for the sprint in which it's next included (assuming it gets ...
15
votes
4answers
3k views

Should velocity increase with time?

Some scrum masters are concerned with "bumping up" a team's velocity during a sprint, as if a higher velocity is better. But points are a relative measure of the work that a team needs to do for ...
8
votes
1answer
2k views

What are “Consumed Story Points” in Trello?

Some Scrum add-ons allow you to enter both estimated story points and consumed story points. What are consumed story points and how do you measure/estimate them?
88
votes
9answers
82k views

Why would teams use the Fibonacci sequence for story points?

Why do some teams use numbers from the Fibonacci sequence as story points? Is it just a preference, or is there something more to it?
6
votes
1answer
260 views

Aligning story points' value

We've ended up with non-linear weighing of our points. I worry this makes reporting velocity data erroneous. Background: A fairly traditional deck is used: ?, 0, ½, 1, 2, 3, 5, 8, 13, 20, 40, 100, ...
11
votes
7answers
1k views

Story Decomposition Granularity

We are having a hard time meeting Sprint comits, one reason I suspect is that we are not doing a good job estimating and one of the causes of this is that we don't do a good job decomposing the story ...
11
votes
3answers
2k views

Is there any published research about story points vs time estimation?

We're getting started with Scrum and have had a few debates about whether we should estimate in story points or ideal hours. The team is pretty divided, so I'd like to know if any real studies have ...
11
votes
3answers
677 views

How to use Story Points, if User Stories are completely different?

Story Points (SP) is a good measurement, that allows estimating User Stories. SP (in my understanding, it's an important note) is convenient because it is relative and not related with time. All ...
8
votes
3answers
9k views

How to estimate a project budget using story points?

Current workflow in our company: I create Given/When/Then scenarios or User stories Developers estimate Scenarios/User stories in hours, by giving minimum and maximum amount of time for 1 scenario/...
27
votes
2answers
47k views

Why do Scrum user stories only use the Fibonacci series?

I know that user stories in Scrum are measured with a Modified Fibonacci sequence (0.5, 1, 2, 3, 5, 8, 13, 20, 40...). Why does Scrum only use Fibonacci numbers to estimate stories?
20
votes
4answers
6k views

How should a team handle disagreements about story-point estimates in Scrum?

During estimation, the Product Owner presents a user story that seems clear to a team that usually knows their strengths and weaknesses, and that is not hostile. What should the Scrum Master do if the ...
4
votes
4answers
5k views

How to factor in story points/tasks for non sprint related items?

I understand that in general you create stories with story point complexity, and then define tasks and subtasks in which to mark time against, but how does this translate into items that are outside ...
5
votes
4answers
2k views

Story Points to Ideal Days

History I work within a IT Team for my business that delivers (Develops & Unit Tests, QA, UAT and Releases) either system improvements or new systems to different areas of our business. The team ...
3
votes
4answers
562 views

Best measurable units for non cross-functional team estimation

I have a new development team and I want to use Story Points for high-level estimation. But I have two problems: My new team is not cross-functional (we are trying to solve this, but this is a slow ...
4
votes
6answers
1k views

Alternatives to estimating in hours/story points

We are looking to change our approach on estimates. Now we estimate in hours/days, but we would like to change this and make our process more flexible. We are working based on Scrum, where stories are ...
3
votes
4answers
1k views

What can we do with a “mispointed” story in Scrum?

Is it OK to repoint the story at the beginning of the new sprint to reflect the size that we have now discovered it to be so our velocity is more accurate? On rare occasions, our team will work a ...
5
votes
3answers
994 views

How does a team (new to product and domain) estimate user stories of a ten year old product?

I am the scrum master for one of the products in a software development company. Our team, including me, operates from India. However my product owner is in USA. We are working on the feature ...
3
votes
1answer
130 views

Carrying items over from one sprint to the next

Question: Carrying items over from one sprint to the next Answer: Yes Scenario: I am a new scrum master on a team and we have just completed our first sprint. I was not here when the team planned ...
2
votes
4answers
2k views

Should I estimate repeating tasks (besides Stories and Bugs)?

Besides User Stories and Bugs (no estimation) we have some repeating Tasks in our sprint, which have not much insecurity and a clear scope. For example such a task is "releasing our plugin" (building, ...
4
votes
2answers
2k views

Is it a good Scrum practice to use large story-point numbers for effort estimation?

Is it generally a good practice to have large story-points for user stories in a sprint? We are following a modified Fibonacci series of 1, 2, 3, 5, 8, 13, 20, 40, 100. We estimate the effort ...
3
votes
3answers
215 views

Are story points achieved a good individual quarterly goal?

Our company is starting to set quarterly goals at a more individual level. For many engineers on the team, these goals will include product impact, automation and code coverage, new responsibilities, ...