Questions tagged [estimation]

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

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23
votes
4answers
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?
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 ...
6
votes
2answers
294 views

Estimate Item Delivery from Throughput plus blockers

We are combining all of our projects into one Kanban board. Since we are only ever one team, it seems to make the most sense to combine everything to one board and prioritize as we can all only work ...
7
votes
4answers
146 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 ...
5
votes
2answers
627 views

Adding test cases to user stories (Backlog items) before the sizing session

Scenario: I was asked by management if it is a good idea to add test cases to user stories before the sizing session. This will involve investigating the item, writing test cases, speaking to ...
2
votes
4answers
259 views

We work with fixed scope, price and time - why should we use Story points?

We deliver projects in fixed price, fixed time and fixed scope environment. We have a contract that specify those, specifications of features. Recently, an agile couch was trying to convince me to ...
2
votes
1answer
69 views

How to treat users stories which were almost completed at the previous sprint? [duplicate]

How to treat users stories which were almost completed at previous sprint but didn't meet Definition of Done due to testers were late for some reason. Suppose one of those stories was 5 story points, ...
3
votes
3answers
82 views

How to structure estimation requests when there is a middle-man

We have a long term project, call it Project A. Our direct client (DC) is an organization between us and the Product Owner (PO). Every now and then we're being asked for estimates. The problem is ...
6
votes
3answers
2k views

Changing backlog story point estimates mid way through a release

Background: We are mid-way through a development which was estimated for a customer on a fixed price contract. To come up with the estimate we built a backlog by trying to list all user stories and ...
6
votes
2answers
611 views

How to schedule back and front-end developers based on story points?

We are used to create multiple sub-tasks for each user story and provide each sub-task with an estimate in hours and assignee (back or front-end). With the following outcome: Total estimated time ...
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 ...
3
votes
3answers
464 views

Agile user story's task estimation

I have some confusion regarding the concept of a user story's task's estimation (effort estimate) using hours. What is the actual purpose of estimating effort in hours? In addition to that, let's ...
4
votes
6answers
228 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. ...
3
votes
5answers
295 views

Is it possible to give accurate estimates and planning without tracking time for tasks?

I work within a small team of developers. We don't track our time so we have no data to work off when we give estimates. Basically, I'm wondering if it's possible to have a successful plan and give ...
8
votes
3answers
1k 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 ...
4
votes
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 ...
2
votes
4answers
12k views

Modelling schedule uncertainty in Microsoft Project 2010/2013

Microsoft Project 2010 (and 2013) no longer contain PERT charts. With this in mind, what is the recommended way to model uncertainty in project time estimates? UPDATE: I only brought up PERT diagrams ...
2
votes
3answers
2k views

Alternative schedules in Microsoft Project 2010?

I'd like to create a "reference" schedule, then create an optimistic and pessimistic schedule based on this where the duration of each task in the optimistic/pessimistic schedules are calculated as a ...
5
votes
6answers
258 views

Is it fine to correct an estimation of a story during execution?

During execution of sprint, should team allowed to change estimation of a story in following scenarios. During execution When a story is finished Re-estimate in absence of Product Owner(PO)
2
votes
4answers
486 views

How to avoid the planning fallacy?

The planning fallacy appears especially frequently when estimating tasks in software development. However agile estimation methods like planning poker etc. don't seem to be designed to avoid this ...
2
votes
3answers
1k views

Is formal tasking required on a Scrum Team

I understand formal Agile-Scrum tasking as the practice of documenting tasks and estimating task hours for each story or product backlog item a team commits to in an iteration. A task defines part of ...
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, ...
0
votes
2answers
130 views

How to negotiate a software proposal?

My company (western Europe) needs to outsource a project, and I received an offer from a eastern Europe software company. The proposal consists of a main part and an optional part. The work is ...
2
votes
2answers
689 views

How to handle large R&D projects using Scrum (or any other agile framework)

In addition to our regular software development tasks we have some large R&D tasks which we find difficult to fit into our scrum framework. The main issue is that there is absolutely no user ...
3
votes
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 ...
4
votes
4answers
715 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 ...
24
votes
7answers
22k 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 ...
3
votes
2answers
152 views

Are there techniques for gamification of hours estimation?

Our team breaks down user stories in sub-tasks, then estimate their sizes in hours using the planning poker technique. The numbers we use are 2, 4, 6, 8, 12, 16, 24, 32 and it goes just like story ...
2
votes
3answers
119 views

How much time should be given for investigating bugs/user stories for a sizing session

How much time should a developer spend on investigating bugs/user stories for sizing in a sprint? Currently we have 2 sizing sessions and a developer has time (time-boxed at 5min) to investigate and ...
2
votes
3answers
121 views

Is the product owner responsible to make long-term estimations about PBI in Scrum?

We know in Scrum, the responsible for make estimations is solely responsibility of the development team, but in long term planning, for example a release planning, we'd to have some kind of estimation ...
1
vote
2answers
69 views

How to set quarterly goals for an unknown amount of work?

My team is working on improving performance for our web application. We have a general idea that we want to: Lower the number of "bad" API calls by focusing on driving down the number of requests ...
93
votes
9answers
38k 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 ...
4
votes
2answers
133 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 ...
22
votes
10answers
2k 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,...
4
votes
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 ...
5
votes
6answers
637 views

Team productivity vs team size

I am looking for information about how the team size impacts project velocity. Let's assume that I have a small project estimated at 300 hours for single worker. What impact does team size have on ...
3
votes
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
votes
4answers
576 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
votes
4answers
75 views

how to estimate multiple stories with less complexity?

We want to track user activity on this screen (attached image) i.e. close button click (top-right) User's tap on textbox (Type your city) User's click on Detect my location If we follow INVEST ...
2
votes
4answers
107 views

Under what circumstances should a software vendor be allowed to increase charges due to unforeseen complexity?

Something that occurs quite often in outsourced software projects is the vendor underestimates the complexity or learning curve associated with an agreed-upon statement of work, and wants to increase ...
2
votes
2answers
102 views

Product backlog items must be estimated in story points?

I have read some common "good practices" out there. Does scrum specify the metrics or the team must determine what and how to use metrics, processes, etc. to the benefit of the product?
13
votes
3answers
42k views

What does person-month mean in development time?

I have a question about communication channels that is talking about person-month but I don't understand what is a person-month. Does it mean this many persons? or this many months? Here is the full ...
5
votes
1answer
246 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 ...
1
vote
2answers
458 views

What pro forma documents do people use to talk to clients about web development

This is a very general question and I believe it will be relevant to other people in my situation. I've been involved as a hobbyist in web design and development for over 2 years now. I have produced ...
1
vote
1answer
158 views

If SAFe must be continuously calibrated and measured in ideal days, why does the framework say recalibration is unnecessary?

TL;DR SAFe says you don't need to recalibrate estimation, but requires estimates and other metrics to be normalized across one or more Agile Release Trains. Context, question rationale, and the ...
1
vote
4answers
102 views

Is it possible to control a project without start date and durations?

In a discussion about the project plan with my team we collected activities, brought them into order and defined end dates. When we came to defining start dates and durations one of the elder team ...
0
votes
3answers
77 views

How handle the change in baseline story

We follow Agile Scrum. We had identified a baseline story for story point estimation and used it for many sprints. We had a velocity calculated. After sometime, the team found that the baseline is not ...
5
votes
4answers
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 ...
1
vote
1answer
173 views

Any suitable cost estimation approaches for ETL projects?

I would like to know if there are any suitable estimation approaches for ETL (Extract, Transform, Load) projects. In my case I will be using Logstash for an elastic stack. Since the amount of work (...
1
vote
0answers
76 views

Is it possible to display Estimation Points for lanes in Active Sprint in JIRA?

in the attachment you can see JIRA, an active Scrum Board. I've a very simple question, is it possible to have on top of the lane a number representing the Estimated Points that are the sum of that ...