Questions tagged [estimation]

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

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2answers
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How to allocate story points on extremely complex user stories?

We currently allocated story points the following way: 0.5 very simple (approx 0-30 mins) 1 simple (approx half a day) 2 Medium difficulty (couple of days) 3 Hard (3 days) This works well for us, ...
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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 ...
5
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1answer
413 views

Database build up estimation for time

I was asked to estimate my time for building a database engine, which would be a session-aware engine, in order to persist in memory the objects of the db. The thing is that I had a code, an engine ...
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2answers
2k views

how to apply the fixed and variable costs on the WBS to estimate the profit?

I have been asked to estimate the profit that could be achieved for a portfolio for IT training courses. I have to estimate the income and the fixed and variable costs and hence the profit. I made ...
5
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2answers
1k views

What is a reasonable strategy for estimating story points for new stories?

The project I'm running is very exploratative in that I don't know very much detail about features in advance. My boss will tell me that he wants feature A and that after feature A is finished, he'll ...
5
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1answer
231 views

Using the Stacey matrix to capture agile metrics

I recently encountered the Stacey matrix in an answer by Stephan Weinhold. After looking at the linked image provided & doing a bit more reading that describes it as a way to characterize ...
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5answers
1k views

How granular should an estimate be for building a web page?

Sufficient Granularity? I have a ASP.NET web page to construct. The design of the UI and classes is already complete. I have prepared a task breakdown, including hours needed for each task. Does ...
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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 ...
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4answers
623 views

How to break down an 8 point story into smaller stories in Scrum?

My team and I are struggling with breaking down a user story that we have estimated to be 8 points. The user story is : "A user can sign up to the app using a registration form so that he is ...
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5answers
1k views

Is it important to estimate the product size for software project?

Estimate size is the process of approximating the size for of the products and parts to be produced for the project. Is it important to estimate the size, especially for the software project? Does the ...
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6answers
223 views

What should a scrum team do if they complete work earlier than expected?

Our development team estimates that they can complete 30 story points in the current iteration. Partway through the sprint they realize that they will complete 50 story points at their current rate. ...
4
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6answers
1k views

Why not use costs instead of story points for estimation?

I propose the following scheme for estimating user stories in a scrum process: A good programmer might cost 80000$ a year, so per hour this is 80000$/52 weeks/40 hours per week = 40$ per hour. In a ...
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2answers
203 views

Can I ask the stakeholders to review my project plan?

I met with the project stakeholders. I documented their goals into a standard WBS structure and a project plan. Can I present my project plan to the stakeholders and ask them for input/feedback on ...
4
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5answers
337 views

Can story points remain constant between the initial estimate and later planning sessions?

Background We have a bunch of epic stories. We have a fixed term to do the project. We have to get approval from a project board. We don't know the velocity of the project team yet. The project ...
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4answers
5k views

When should I assign 0 and 0.5 story points to user stories in Scrum?

I am not a Scrum Master or a Ph.D. in math. How do stories with 0 and 0.5 points apply to stories on the Scrum board?
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3answers
654 views

How to address friction between estimation requests and delivery commitment

I'm working on a large program, of which my team are a small but vital part. We have three development teams on aligned on three weekly sprint cycles. We assign stories from the backlog based on a ...
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4answers
636 views

Should a team estimate tasks based on the executor's capacity or on the team average?

My team is adopting Scrum. When estimating story points for a backlog item, we use planning poker to reflect the team's average vision of the story's complexity. When estimating task hours within a ...
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4answers
416 views

Scrum team committments

If my Scrum team is always completing 100% of their committed items, is that a good thing? Given the amount of variability in software development, this would seem to indicate something is fishy to me,...
4
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2answers
13k 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 ...
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4answers
368 views

Schedule Control

Here's the scenario: You are building a schedule for a project that has a planned duration about three months. You are not concerned about project costs so you will not be doing EV. You are ...
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3answers
2k views

How to evaluate task duration?

Another question came up about estimation of budget and time plan estimates for a project. In my answer, I stated that the ground knowledge for time estimate was experience. Does anyone knows a more ...
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4answers
885 views

Story Points flaw?

Forgive me f this has been asked before, I read some similar questions (linked below), but didn't find the answer I was looking for. Our team is fairly new to them and trying to figure out how to ...
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3answers
1k views

Which metrics can help estimate the size of a project?

I am putting together a project sizing tool to help understand what artifacts are required for projects (E.G., a simple project may not require a project charter, whilst a complex project may require ...
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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 ...
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4answers
4k views

How to measure percentage complete on an Agile project?

What do you do when management asks for a percentage complete on an Agile project?
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1answer
1k views

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

I'm reading Mike Kohn'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 ...
4
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1answer
239 views

Estimation Quote on realism vs optimism - does it exist?

I could have sworn I read a quote by Steve McConnell or perhaps Fred Brooks about teams that make conservative estimates and pessimistic deadlines but meet them every time garner more trust and ...
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1answer
511 views

Re-Estimating a story's points midway through a timebox

I have recently come across this situation: user stories are estimated using story points timebox planning session has taken place and everything is agreed on timebox (three weeks) is in week three ...
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2answers
1k views

For every hour cutting code, how many project hours are spent doing something else?

I work on a large line-of-business legacy application, my projects are very much NOT green field. The dev teams are small, usually 2 developers, 1 system tester, plus part-time PM and BA resources. ...
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2answers
121 views

What techniques do you use to establish scope in agile

More than communications skills, lean techniques to discard useless features with no value, more than ask "what do you want?" or "is there anything else?" to the customer. Reading the book Agile ...
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2answers
897 views

How can we estimate the learning curve for new technology in a project?

I work with embedded systems and sometimes there are some technologies that the people involved with the project have to learn before applying to the product. We are three people that never worked ...
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2answers
1k views

Getting estimated working time from MS Project

Our company has just recently started using MS Project Professional 2010 and we plan to eventually have a Project Server installation. I've created a few projects so far, but still claim to be a ...
4
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1answer
139 views

Modal estimate when it comes to project deadlines

I'm relatively new to Project Management (having a technical background) and I noticed that there are these specific columns in an excel file regarding deadlines: Pessimistic | Optimistic | Modal ...
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3answers
141 views

Do bugs from previous Sprints need to be estimated?

For example: in Sprint 2, on story, A Tester raises 4 bugs. 2 bugs got fixed in the same Sprint. The remaining 2 were pushed to the Product Backlog. At Sprint 6, we are picking those 2 bugs of story A ...
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2answers
164 views

What methods are there to figure out how adding people to the project will reduce the amount of time needed?

I've been asked to estimate how long it will take for a big project to get done, and I was able to break it up into small tasks and come up with an estimate for one person do it. However, I'm now ...
4
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2answers
123 views

Underlying algorithms to restimate the remaining tasks based on previous estimated and actual time realised for completion?

I need to re-evaluate time for remaining tasks based on the actual time and estimated time of completed tasks. For example if a small project had 4 tasks and each task was estimated at 2 days. Lets ...
4
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1answer
5k views

Does the team estimate time for tasks or stories or both?

During the sprint planning meeting, does the team estimate time for each story, or the tasks that make up the story? Then which is tracked by the team/scrum master? I assume the team estimates the ...
4
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6answers
2k views

What questions would you recommend to put into project estimation checklist?

I would like to create common checklist for project estimation in my organization. The idea behind is to make sure that you have taken into account different aspects (ie. lack of knowledge of given ...
4
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2answers
129 views

Estimation of non-estimability project

We need to create some solution with a new technology, in which no member of my team has any experience. The higher management demends the tentative dates of the working solution. After a week of ...
4
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2answers
77 views

What type of estimation is applicable if work items can't be similarly sized because they will violate MMF

As per Kanban, estimations are considered as waste but from the business perspective we need estimation and there is no way to keep features similarly sized. S, M, L sizing does not work as well ...
4
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1answer
116 views

Project Planning For Merchant-based Software

I'm quite new to project management. I have a software project in mind and would like to manage it the correct way. The app basically allows movie theater owners to announce their upcoming movies, ...
4
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1answer
128 views

Pragmatic method to check/improve effort calculations

Somebody asked me to look over their cost calculation for an internal IT project in the 1.5 mio € range. They did some eyeballing, and are now asking me to cross-check it for them with a few hours of ...
3
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4answers
5k views

Should there be testing-only user stories?

We estimate stories as 1, 2, 4, 6, or 8 points. Consider a story with less development work but huge testing effort. Let's say we estimate that story as 8 points. We see the following options: Let ...
3
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4answers
1k views

How to compare and select one project out of two?

It's being rather a tough choice on selecting projects. (Different case from what I had posted before.) Now in the scenario if there is Project A and B. Only one project can be executed and that has ...
3
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3answers
281 views

Are there alternatives to estimation? (Software development)

I am taking control of a small project for the first time, and want to tell if we can deliver our scope on schedule. Most teams I have worked in have used story-based estimations. My experience of ...
3
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4answers
560 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 ...
3
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6answers
235 views

Long running product development project

Background: We have long running product development project, which consists of different features. The development team consists of 15 developers and 5 QA engineers. We setup releases each 5-7 ...
3
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2answers
1k 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 ...
3
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4answers
135 views

Handle stories which can not be estimated

Do scrum have a method for handling tasks which can not be estimated in any meaningful way? I'm going to give an example we faced recently. We sell some hardware devices and recently found out that ...
3
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7answers
396 views

Adding estimation points for learning / context switching

In our scrum team, team members tend to add extra points in estimation when there is a "learning" part involved. Here's a simple silly example. Let's say all the people in a team are experts in C# ...