Questions tagged [estimation]

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

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1answer
65 views

Minimum number of items in the Product Backlog for an Affinity estimate

I found this question in an exam and I'm puzzled: Affinity estimate is a technique used for arriving at a high level estimate quickly. What should be the minimum number of items in the Product ...
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6answers
14k views

How can developers and testers agree on story point estimates?

Previously we used duration for each story, but in our current sprint we are using story points (effort) keeping test team effort separate from the development team effort. Story points are based on ...
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7answers
6k 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 ...
5
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7answers
992 views

How reliable is velocity?

I'd actually like to devide the question in the title in two related sub questions: In your experience, how reliable is the velocity in letting the product owners forecast the delivery date of a ...
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5answers
2k views

when a software project is behind schedule should we add manpower?

When an essential software project is behind schedule we might naturally add manpower. The new developer, however competent and however quickly recruited, needs additional training from an ...
0
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1answer
125 views

Total cost increases every week,

I am using the MS project,i have noticed that the total cost column of the project increases every time i enter actual work. i am not sure why is that! could it be because some of the ressources are ...
8
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7answers
2k views

Estimating when my project will be done

Suppose my project has 150 story points of work remaining to be done. Over the last 10 iterations the team has achieved the following velocities of 16, 12, 13, 5, 14, 7, 6, 12, 16, and 14. Assume two-...
6
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5answers
693 views

We have a velocity of zero

I am a Scrum Master for a small development team of 7 developers and 3 testers with 2 week sprints. The product we are working on is large with a lot of modules. The breakdown of the modules is ...
97
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10answers
39k 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 ...
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5answers
2k views

How to manage story points when several developers work on 1 story?

My team consists of 2 backend devs, 1 front end dev and designer. Lets pretend we have next user story: As a user I want to sign-in/sign-out to use the system Designer says that it is equal to 2 ...
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2answers
136 views

How to Calculate Effort Variance in Scrum

My team currently works in 3 week sprints and we are capturing Key Performance Indicator (KPI) for each sprint. One of the KPIs is Effort Variance (EV) per sprint My question is at the end of the ...
157
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19answers
91k 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 ...
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2answers
154 views

What’s the name for the estimation method where only one team member estimates at a time and others have a veto right?

This method is usually used for estimating quickly on a large chunk of user stories to get a feeling on the overall project effort or part of it. I know this estimation method has a name but I have ...
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2answers
102 views

How to estimate and plan with a distributed, part-time team?

The situation: We are a small, fully-distributed software solutions provider. We serve multiple clients, and given our size that means every team member is on multiple, part-time billable teams. ...
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7answers
15k 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 ...
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9answers
8k views

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

For example : Some see its userstory (e.g. 2 points) and others see technical complications and judge that the story should be 20 points. The 2-point voters say, "I understand your opinion, but don't ...
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3answers
92 views

How to estimate delivery date with unidentified tasks

Given a software project which is complete when all of its deliverables are delivered, in which each deliverable has sub-deliverables, in which each sub-deliverable has multiple tasks assigned to it ...
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3answers
92 views

When estimating with story points should developers and QA provide their estimate based on their individual idea of complexity?

The question was as follows (and from the QA member of the team): Should I think about how complex it is from a QA AND a developer's perspective? Or just from a QA's perspective? Since story points ...
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2answers
86 views

How should I handle project cost (in time) to a client without committing too much work?

currently we have a client that have a series of requirements (very broad and general) for an app. I as the PM was asked by my boss to estimate how much hours of work were required to make that app. ...
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2answers
108 views

Slowing down of an agile team as the development progresses

Let's consider an agile software project. In the beginning of a project each Story can be implemented quite quickly because the code base is small, there're few dependecies between different parts ...
7
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2answers
325 views

Any research of the accuracy of Story Points?

One of the main questions about Story Points is what is their accuracy. Has any research or survey been performed to analyse their precision? For example what is the accuracy of the completion date ...
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5answers
3k 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'...
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3answers
780 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 ...
0
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1answer
103 views

Kanban Estimation using Littles Law

I am new to Kanban, I am aware that Kanban is a flow system and estimation is optional. My stakeholders have requested the following: Provide a delivery date for the remaining items (WIP)? If the ...
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3answers
123 views

how to do spike/research story which can run more than 1 sprint

I past I have done a research/spike story which was a new area for me. Building big excel, debug ntml2 jar for authentication issue. our sprint was 2 weeks and it runs for more than 1 sprint, what ...
2
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2answers
153 views

Task estimation and probable risks

Let's suppose we are estimating a task (not by the planning poker). We have discovered that there are a few possible problems (risks): Risk 1 - with the probability p1, ..., risk N - with the ...
2
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1answer
189 views

How can I calculate how many developers do I need and how long it takes to complete the project? [closed]

I am trying to create an LMS system using Angular and NativeScript. It's a LMS web application like Adobe connect (although a simplified version) that will be written in Angular 8 for example, and a ...
2
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6answers
2k views

A simple estimation accuracy formula that always yields 0-100?

I'm just beginning, and despite my search, I cannot find any simple formula that would return a number between 0 and 100%, i.e. I do not care whether there was over or underestimation. The simplest ...
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4answers
2k views

How do you measure time units in sprint velocity?

I am trying to get my head around "Story points" using the Scrum methodology. As a starting point, I have been following the following article: http://scrummethodology.com/scrum-effort-estimation-and-...
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1answer
100 views

Mobile apps: integrate backend work in velocity?

Here is my situation: I work with two SCRUM teams, iOS and Android Each of the SCRUM team has its own Product and Sprint backlogs We have shared Sprint Plannings, Reviews and Retrospectives (both ...
6
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5answers
12k 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 ...
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1answer
100 views

Outsourcing company: Usage of velocity for offers

Currently I am working in an outsourcing company and our management has decided to use the following scheme for "Velocity of the developers": Each developer has a velocity quotient: Senior Developer:...
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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 ...
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6answers
1k 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 ?
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4answers
173 views

Team added “Daily Scrum” as a task in Jira. How do I get rid of this?

So I am just joining a new team. This team is using "Daily Scrum" as a task because according to them it is a "task". Obviously I want to help them understand that it is not a task, just like ...
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2answers
77 views

When should we stop estimating?

When using Scrum, are the estimated story points for completing an User Story sufficient, or should the estimate be taken at the task level?
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2answers
212 views

What is an “e zero” estimate

I am often asked to provide an "e zero" estimate for a piece of work. I have been assuming up to now that it means "rough estimate". Does anyone have any link to what this means specifically. I ...
0
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2answers
126 views

Fibonacci scale project estimates: how is it not vulnerable to misunderstanding by management?

The Fibonacci sequence is to assist developers with project estimates. The concern is that we consistently see management use the points derived from Fibonacci sequence estimates to determine project ...
1
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3answers
82 views

Tracking progress of a team working on small tasks

Our software team works on small tasks. Each task takes about 2 weeks. There are developers whose performance is twice bigger than the other's (the level is the same). Everybody just writes how much ...
0
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2answers
61 views

Tasks during sprint planning

For the next sprint, Jira displays the total number of story points in the backlog, calling it "Estimate.". This number leaves out tasks, which are estimated in hours, not story points. This makes it ...
5
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3answers
388 views

Dev went on vacation leaving his work unfinished. How to manage this without informing the customer?

I would like to discuss and hear some advice from you about a pretty common situation. We develop the functionality that has huge business value for the customer’s project and thus the customer is ...
0
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1answer
63 views

How are low ambiguity and low complexity tickets dealt with when they have a high work cost?

In our scrum team, we can often get user stories which are not very complex and not ambiguous but have a high amount of leg work associated. Example: We receive a user story to replace the name of a ...
5
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4answers
6k 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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1answer
68 views

Is there any estimation method to estimate end user testing?

Is there any estimation technique that can help us to estimate the number of needed test cases in traditional software projects? For example, we have a Software requirements specification (SRS) with ...
3
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5answers
862 views

Should a good project manager be a good risk manager and a good estimator as well?

I'm taking project management class. It is hard to understand the relationship between estimation, risk management, and project management. Could you explain it based on your experience? My lecturer ...
1
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1answer
165 views

How can we persuade team members to estimate in story points instead of hours?

We use story points to estimate our user stories. We find that story points solve the problem of underestimating the amount of actual work which is required to complete a task, as it takes the ...
2
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2answers
46 views

When choosing the largest and smallest stories in a backlog for estimation how does it impact each sprint?

An article I came across suggested that we should pick the largest and smallest story in the prioritised backlog and relatively estimate the remaining stories. This makes sense. However, I was ...
3
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2answers
96 views

Should single user story contain estimations for each involved guild in full-stack development team

Problem We're working in a full-stack development team composed of three guilds (backend, frontend, QA), so as a team we share a single sprint board. User stories we take into our sprints are written ...
12
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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 ...
12
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4answers
686 views

How can I improve a project schedule on a project I took over and complete it on time?

I just took over a project from a Project Engineer and just saw a revised project schedule. The revised schedule shows the project will be delayed by 3 months. I am trying to complete it within the ...

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