Questions tagged [estimation]

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

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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 ...
2
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4answers
170 views

Team consistently over commits

I'm a developer on a small-ish team. 1 DBA, 2 Senior Devs, 2 Juniors, and 1 QA (sometimes, most of the time we do our own QA). No PM at the moment. We do mostly maintenance/upgrades to a large legacy ...
1
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4answers
1k 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-...
5
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7answers
11k 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 ...
0
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3answers
231 views

Does anyone estimate stories per discipline in a single story?

SITUATION: Understand which disciplines are more burdened than others on cross-discipline teams. POSSIBLE OPTION: When estimating a story, provide a story point estimate for each of the different ...
0
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2answers
397 views

Who should attend Sprint Replanning?

It is clear that in Sprint Planning the Product Owner has to be present. However, since the Development Team is responsible for current sprint work, does the PO need to attend Replanning? Although the ...
10
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3answers
562 views

Relevant metrics for issue closure estimation

What metrics can influence or help with such an estimation? I am mostly interested in applying such metrics on GitHub projects, using their issues history. Based on how fast they solved their ...
1
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5answers
253 views

Should I remove distraction time from developers' capacity time while giving time estimation?

I am about to give new estimations of a project delivery time, estimating iterations etc.. Besides development, developers spend much time on distractions. By distractions I mean everything(tea, ...
3
votes
3answers
172 views

What 'economic drivers' should be part of our “software business case”?

So we need to perform a feasibility study of one of our initiatives and need to present it to the 'higher ups' - It needs to incorporate numbers (estimates) both from the perspective of tangibles and ...
5
votes
1answer
410 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 ...
1
vote
2answers
772 views

Which model of benefits measure is appropriate for a new projects

I would like to know a good method to measure which idea choose to get the maximal benefits. The live is more easier when we have a customer which suggests some price and we can balance the cost to ...
3
votes
3answers
224 views

reestimating story size after moving back to product backlog

Let's assume that part of the story (worth say 8 points) was done in the sprint 1. Then, after implementing part of it we are discovering that in fact it is much bigger than originally estimated. ...
2
votes
5answers
78 views

Determining the best task average

What is the best way to determine a weighted average for the actual time spent on historical tasks. Let's say for example each project has a task A. And task A varies in time spent depending on ...
6
votes
2answers
478 views

Who pays when actuals exceed pessimistic estimates?

Scenario: A Developer estimates between 70 to 100 hours for a task. Due to the urgency of the task and the developer's unavailability, a far less experienced developer is assigned to the project. The ...
1
vote
1answer
220 views

How do you cost for an agile ux project?

Hi I work for a small digital agency where we do a lot of ux work and therefore a lot of planning and research. The culture and approach to development projects we have moved to in recent years makes ...
0
votes
1answer
275 views

How should we estimate accessibility testing for a waterfall project?

I am working with a lot of teams and there are different phases of testing. We have devised a standardized process for accessibility testing across many different teams. This process is to be done ...
8
votes
4answers
1k 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 ...
4
votes
3answers
127 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 ...
15
votes
7answers
472 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 ...
3
votes
4answers
229 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 ...
5
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6answers
297 views

How to prevent deliberate long estimation?

There is a team and a PM. Unfortunately, the PM does not have very strong technical skills, therefore he has no basis for estimation of the time and costs which are required for each part of project. ...
9
votes
6answers
917 views

Should we allocate separate hourly estimates for test tasks in addition to the development tasks

Breaking user stories into tasks and estimating their development time in hours is pretty widely accepted. However, we have subsequent test activities that need to be carried out before the task and ...
5
votes
2answers
633 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 ...
2
votes
2answers
629 views

Function Point value, which is better

Based on FP table here: http://www.qsm.com/resources/function-point-languages-table Here are average FP value for 3 different languages Java --> 53 J2EE --> 46 .Net --> 57 As I understand the FP ...
1
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2answers
367 views

How to estimate story points if team members work on different applications

Our team consists of 4 full-time developers and occasional outside help. The developers maintain several different applications and do not all share the same skill set. I understand that scrum teams ...
7
votes
2answers
265 views

Sprint story point from PM perspective

As a project manager, I am interested in the effort (estimated and actual). While Sprint based estimation is story point based, how can I translate them to effort so that I can track and report them. ...
9
votes
2answers
492 views

Time estimation and deadlines

I started working in my current job as an Android developer right after graduation (1.5 months ago), my first task was to build a complaint application which includes the following features: ...
15
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7answers
12k 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 ...
6
votes
6answers
477 views

How can we mitigate uncertainty about project estimation in the initial phase?

According to Boehm’s Software Engineering Economics, during the project initiation, estimates can be off by as much as 400%. However, in order to make the sale, account managers are expected to make ...
9
votes
4answers
801 views

Sizing a potential project rapidly without formal estimation

We have been asked by management to spend a very short period of time to "size" a software project - that is, to give them a very loose ballpark of time to implement the entire thing. There are three ...
1
vote
3answers
104 views

How to estimate a project without understanding the network path?

I am trying to estimate for a project, with each resource work for some hours and i have total hours for project. How can derive the exact completion date ? Eg. Resource 1 - 25 tasks - 240 hrs ...
7
votes
1answer
455 views

Techniques to calculate the cost of change in software engineering

There is a bunch of techniques to do software estimation. Now given a piece of software, is there some methods/techniques to evaluate the cost of change of an already implemented requirement ?
3
votes
3answers
507 views

Should the Kanban CFD be weighted with estimates?

I am working in a Kanban process with a team the tries to estimate Cycle time, Lead time as well as completion time based on applying FIFO wherever possible on our queues. Using the Cumulative Flow ...
0
votes
4answers
451 views

Should the complexity estimate of a task change in scrum?

I'll just start with an example. We have a repeating task "Release library" which in the beggining we agreed on an estimate of 2 points: it seemed to be twice as hard as our 1 point baseline. As we ...
31
votes
10answers
3k views

How do you deal with continuous work pressure?

I'm working as a QA for software product development. During the course of our meetings we typically discuss what tasks we are going to do and provide an estimate for each task. My manager has a habit ...
1
vote
1answer
466 views

How to calculate Critical Path including Std Dev for each activity estimate?

When estimating activity durations, you get a duration plus/minus a sigma (standard deviation) for each activity. Afterwards, when you want to determine the critical path, what figure should you ...
0
votes
1answer
88 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 ...
1
vote
1answer
89 views

How to estimate effort when the story involves a large number of repeat processes?

In our organization we occasionally have stories that involve a very large number of repeated process. The process itself is very simple and straightforward and usually we give 2~3 points. When the ...
4
votes
2answers
122 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
votes
4answers
414 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,...
-2
votes
1answer
3k views

Cost estimate template or examples for software development [closed]

I am preparing my first cost estimate for a project as a freelance software developer, and I am wondering if there are templates or examples available to help me get started. I understand that a ...
0
votes
4answers
1k views

How can I plan a project that has undefined scope associated with learning new skills?

The client has set (and we have agreed to) the deadline for a project. In order to complete the project, the team needs to master a new tool chain including Selenium and Java. How do I establish a ...
0
votes
1answer
205 views

PERT adjust most likely time with probability and duration time

I don't know if the name of the question is clear what I would like to do is: I need to adjust the most likely time for an activity of my project in purpose of the probability of any path through the ...
2
votes
4answers
341 views

Best reply to project manager's failed humour [closed]

Whenever a manager ask us to perform a task, we often ask "when do you need this by?" Some managers try to be smart and often say: "yesterday". What would be the best comeback response?
5
votes
1answer
309 views

Scrum uneven distribution of work hidden in a unified effort

I'm currently a developer at a small software development firm, and we are starting to adopt Agile (specifically, Scrum) philosophies into our culture and project management style. We have only a few ...
9
votes
10answers
8k views

Do you include testing in the original estimate?

Our dev team estimates work in hours, but we do not include any testing time in the original estimate. For example if the devs say an item will take 4 hours that will become our estimate for that item,...
12
votes
6answers
550 views

What level of analysis should the development team expect before being asked to estimate and develop a story?

Here is an example of s story that recently made its way into a timebox. As an Ecommerce Executive, I want to make improvements to the Request a Callback form which will make it easier to segment the ...
4
votes
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 ...
1
vote
3answers
4k views

What is “Lead Time”?

I have a task within my project criteria which states: "Purchasing lead-time for the steelwork is estimated at 60-80 days". What does lead time mean? Do I have to make special considerations for this?...
1
vote
3answers
319 views

What to do with the Sprint backlog tasks that we have decided are not needed any more

Can anybody answer my question here? I have estimated for 5 to 6 tasks like analysis (4 hrs), design (3 hrs), logical review (1 hr), peer review (1 hr), unit testing (1 hr), coding (2 hrs) and release ...