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Questions tagged [estimation]

For questions about the estimation of the project's parameters, such as time or cost.

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34 votes
7 answers
33k views

How do you schedule delivery dates in Scrum?

I've run into a constant issue. When a project starts, the client typically has a list of functionalities to be built in to the application. As a team we would like to follow Scrum. But the next thing ...
John's user avatar
  • 648
22 votes
6 answers
5k 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 ...
Willl's user avatar
  • 2,071
164 votes
19 answers
98k 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 ...
chrishomer's user avatar
  • 2,191
25 votes
3 answers
15k 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 ...
Ashok Ramachandran's user avatar
17 votes
4 answers
6k 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 ...
Pedro's user avatar
  • 699
28 votes
7 answers
8k 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 ...
Tai's user avatar
  • 383
25 votes
4 answers
7k views

Why does Pivotal Tracker discourage estimating points for bugs and chores?

Pivotal Tracker "strongly discourages" estimating velocity points for bugs and chores – you have to change a setting and accept a warning to be able to do it. They explain why here, but I just don't ...
callum's user avatar
  • 353
102 votes
10 answers
41k views

How to estimate amount of work/man hours for an unfamiliar task?

Sooner or later we come across a task in our project, with which we are totally unfamiliar ('we' as in PM, but also possibly the staff assigned to do this particular task). How can we estimate ...
Mchl's user avatar
  • 2,352
13 votes
5 answers
494 views

Discerning estimate validity

I've had experiences in the past where different developers will give different qualities of estimates--which then have to be consolidated into a single project plan--only with a twist. One ...
Ray's user avatar
  • 233
12 votes
4 answers
2k views

Forecasting Story Points in Agile

Are there any methods to fairly estimate story points for a project before deep diving into the planning poker part. I am asking this because sometimes at project initiation it helps to know the ...
user23615's user avatar
  • 121
3 votes
2 answers
4k views

Is it possible to remove Stories during a Sprint in Scrum?

Scenario In our organization, we use velocity to forecast the amount of possible work in a Sprint. Sometimes, based on the Team's average velocity, we add extra features not related to the Sprint ...
Josbel Luna's user avatar
26 votes
4 answers
13k 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 ...
TeXter's user avatar
  • 425
7 votes
1 answer
460 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, ...
Oleg's user avatar
  • 171
6 votes
5 answers
15k views

How to estimate accurate velocity when team members are on leave

I am a Scrum Master of a team with 12 members. I know that the size of the team is large at this point, but as we grow further we will divide the team into multiple Scrum Teams. Our estimations for ...
ramu's user avatar
  • 671
5 votes
4 answers
2k 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 ...
yellavon's user avatar
  • 151
3 votes
4 answers
416 views

How to estimate without relying on SMEs to estimate based on similar projects?

I create MS Project schedules for the government and recently moved to a new position on a staff where I am being asked to develop and control schedules for tasks that are rather vague, i.e. create a ...
Mark in Virginia's user avatar
2 votes
1 answer
6k views

How do you estimate epics?

Let's say we have a brand new project and we want to raughly come up with a bunch of releases and its dates to give the business a vague idea of when we will finish. Obviously we have all our user ...
nourdine's user avatar
  • 511
26 votes
7 answers
2k views

How can a new PM manage a failing project in a few hours per week?

I am working as a beginning scientist and was given the management role for a small project (5 internal scientists, 1-2 external software contractors). What are the absolute essentials I need to ...
msc's user avatar
  • 361
25 votes
6 answers
18k views

Where should design be incorporated in an agile process?

We use a scrum-based agile development process. But where should design get incorporated? Separate user stories? Tasks on stories? We currently think of design as a separate task and break it out as ...
chrishomer's user avatar
  • 2,191
15 votes
7 answers
819 views

How can I make unit testing a priority?

As a one man band delivering smallish web development projects, I found that nearly all regression issues that clients find in the final development phase of the project could be found with unit tests ...
jdog's user avatar
  • 421
15 votes
3 answers
1k 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 ...
Sergey Kudryavtsev's user avatar
13 votes
3 answers
3k 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 ...
donkey's user avatar
  • 243
12 votes
6 answers
1k views

Why use iterations in Scrum?

I am a Scrum Master in a 7 person team. We currently use one-week iterations for our sprints. I find that sprint planning overhead is huge (2 hours each week for entire team), and not nearly as ...
F.Z's user avatar
  • 123
10 votes
4 answers
2k views

Sizing an entire backlog using story points

I'm a PM on a large multi-year project with a sizable backlog of work implementing Scrum in 4 week release cycles. I hold weekly backlog grooming sessions with the project team and key business ...
KirMasAna's user avatar
  • 181
10 votes
2 answers
970 views

Agile estimation and communication of price to customers

I'm new to this Agile way of doing estimates. For a long time I have been working in the classical way of estimating the whole project up front (roughly). Now I have started to look into the Agile ...
Martin at Mennt's user avatar
8 votes
3 answers
2k views

Sprint Burndown chart and tasks estimation in time

I worked as a developer Team Leader, than we became Agile and I took the role of Scrum Master (SM). In the meantime, I've switched to Project Management, but remained in contact with Agile and Scrum, ...
Razvan Grigorescu's user avatar
5 votes
5 answers
4k views

Definition of a Story Point [closed]

As far as I'm aware there's no definition of Story Points and how to compare them. Each person in a team may have his personal understanding of the correlation between an effort and Story Points. Isn'...
Chris Brettini's user avatar
1 vote
6 answers
2k views

Velocity of the team

If i have been provided with the information of six sprints having story points like 20,21,22,23,24,25,26 then what should be the velocity of the team ?
Paurush Vishnoi's user avatar
35 votes
7 answers
16k views

Is Planning Poker Bad for Software Development Teams?

We have a project manager that is adamant about planning poker. I have found that this adds stress to everyone on the team, and the times are always wrong. We have different skill levels on the team ...
Grim's user avatar
  • 452
23 votes
10 answers
3k views

Is estimating a project without basic requirements or user stories a good idea for a fixed cost proposal?

I am currently trying to create an estimate for a software proposal. In this context, we are requesting a fixed cost amount of funds. I personally lean toward Agile development practices. I, however,...
Michael Rosario's user avatar
23 votes
4 answers
4k views

Task estimation for PMs who are not developers

While working Agile, how can a PM estimate a task when he/she is not a developer?
Anna Galstyan's user avatar
22 votes
5 answers
7k views

Why are estimates treated like deadlines?

This is one thing that I've always taken as a given, the "status quo" in my line of field (software development) but never really gave it a deep thought. And even now that I do, I still don't ...
user12198's user avatar
  • 221
18 votes
5 answers
585 views

How should I account for non-coding time when estimating duration of a coding task?

I was wondering whether this approach I am doing to scheduling dev work on a day to day basis is correct. In which I assume that instead that a developer has 8 hours a day to do coding, they actually ...
MechaStorm's user avatar
17 votes
5 answers
1k views

Deliver results when finished significantly prior to the agreed deadline?

In the seldom cases where your project (or milestone) completion estimation was too pessimistic, do you deliver results right away? If not, which tasks do you assign your team members in the meantime? ...
bonifaz's user avatar
  • 1,136
16 votes
4 answers
424 views

Who pays for learning curve?

Should a client be billed for a certain amount of the learning curve? Should an employer pick up the tab on overhead? Should it be the developer themselves? Or perhaps a combination of all three? I ...
ved's user avatar
  • 261
14 votes
4 answers
3k views

Artificial decomposition in Scrum

Scrum Guide says: Product Backlog items that can be Done by the Scrum Team within one Sprint are deemed ready for selection in a Sprint Planning event. They usually acquire this degree of ...
Daniel's user avatar
  • 2,739
12 votes
9 answers
2k views

What tools can help me estimate a project length?

I need a way to make fast estimates: For example I'd like to know how long it takes to take a mobile device from nothing to production... let say that a customer wants a IPHONE like product(scope) ......
Asaf 's user avatar
  • 253
9 votes
3 answers
12k 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/...
Ruslan Doronichev's user avatar
9 votes
4 answers
2k views

When can a project's wrong estimates be justified?

This question is not about project estimation techniques, initial processes, etc. Assume everything was done correctly. Recently, we gave an estimation for an Android application with development ...
saakian's user avatar
  • 702
8 votes
4 answers
3k views

Estimation given in days and need to plan in Agile

The client internally feels that this is about 500 developer days worth of work and there could potentially be 4 developers (or pairs of developers) that work in parallel. We need to go back to them ...
Dimple Sahani's user avatar
8 votes
3 answers
2k views

Why are Story Points of a story not equivalent to days/hours in estimation. In Scrum [Agile]

I'm currently working in a team with new to agile methodology programmers and few old school peeps. They seem to always, in planning meetings give hours/day estimates for a story. It really pisses me ...
user avatar
7 votes
2 answers
2k views

How can I estimate a project's costs without well-defined scope, scheduling, and quality inputs?

I work for a private investing firm that is looking to move from a face to face business to online business. They want to create a large, scalable website that can handle thousands of accounts and ...
jokker's user avatar
  • 73
7 votes
4 answers
246 views

What is the term for actual delivery time will be varied by 4 times from estimation?

I remember I once read in Wikipedia about a law stating that the actual delivering time will always be 4 times less to 4 times more from the estimated time, even when you aware that law and know every ...
Ooker's user avatar
  • 199
6 votes
2 answers
23k views

Who should estimate user stories?

Should the product owner take part in estimating user stories? Furthermore, in our team not all developer familiar with every part of the system. Client and server side is a usual separation. GUI ...
user6352's user avatar
6 votes
3 answers
1k 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 ...
ramu's user avatar
  • 671
6 votes
4 answers
289 views

What needs to be in place to get a Software project estimate within 10%

Often we hear people wanting estimates to be within 10% even if the dev team has not been hired yet and you have no idea about their productivity. This results in techniques such as fat and burn (add ...
user1605665's user avatar
5 votes
2 answers
2k views

What are Acceptable SLoC Rates?

This is not a question regarding the quality of the SLoC metric. I accept it as a limited, inaccurate, or even poor metric. That said, I am looking for data that indicates what reasonable rates ...
Chris's user avatar
  • 153
5 votes
6 answers
3k 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 ...
Houbie's user avatar
  • 181
5 votes
1 answer
2k views

Agile. Release planning. Why do I need stories instead of themes/epics

I'm reading Mike Cohn's book about Agile estimation. At the same time I have a release planning in couple of days. It's going to be 6 months (12 sprints release). We have the ideas about what needs ...
Ruslan's user avatar
  • 344
5 votes
3 answers
866 views

How to make realistic long term time estimations when adopting Agile methodology?

I just started to manage the technical department of a small web design firm. It's the first time I'm faced with such a job and I'm trying to figure out how to improve their project management ...
mettjus's user avatar
  • 311