Estimation is the process of finding an estimate, or approximation, which is a value that is usable for some purpose even if input data may be incomplete, uncertain, or unstable.

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Are bargaining and beat down attempts on Scrum estimations legitimate parts of the process?

I noticed in scrum meetings, that developers often give realistic estimations on stories. However, even rather simple stories need a lot efforts for configuration, setting up third party components, ...
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7answers
1k views

How long to spend estimating programming tasks?

For example, if I break a project into n discrete work products (say classes or functions or components) is there a time t such that n*t is a suitable amount of time to spend on estimation?
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6answers
816 views

Software cost estimation [closed]

I've seen on my work place (a University) most students making the software estimation cost of their final diploma work using COCOMO. My guessing is that this way of estimating costs is somewhat old ...
8
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5answers
803 views

CRM: In-House vs. OTS

Many, many years ago, when I was young and naive and wrote everything from scratch unless it came with the language, I was working for a company with two sales people in two locations who were trying ...
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3answers
7k views

How to estimate sprint velocity with varying team capacity?

We are a small team of 4 devs rather green in Scrum. Coming from all over the country, we often take odd days off or whole weeks off to go home. Therefore our team capacity changes dramatically from ...
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6answers
425 views

Project estimation with increasing requirements

Making a project estimation with given a requirements set is one thing. But, what happens when the user suddenly starts changing them on the fly and starts adding new requirements to the already ...
7
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5k views

What are the methods to estimate source code value?

I've been working on some project on my free time for the past few months. Recently I've been approached by friends to build a startup, and this source code would be very valuable to us. As a ...
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5answers
526 views

Should the number of developers be considered when estimating a task?

I am pretty inexperienced with working in agile projects but I have tried it a few times and I always run into this problem when estimating a task. Do we bring into the estimate the number of ...
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6answers
4k views

How many user stories per person should be completed per sprint? [closed]

Just ran across this figure, and wondering if there's another well know source than would help confirm these numbers: Based on data I analyzed on successfully finished sprints, I determined that ...
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7answers
933 views

How detailed is the estimate you show your customers?

For custom software, when you are giving your customer an estimate, how much detail do you tend to include? Do you: break it down into small tasks that can be done in a few hours and give them ...
7
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3answers
605 views

Agile estimation with tech-debt

When estimating (story points) a story that consists on extending a current functionality with a known tech-debt, should we consider the effort that will be spent to refactor the current code or ...
7
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3answers
410 views

Real world Agile practices and estimates

In a perfect world, we tell the client we follow an agile methodology where we allow the scope to increase/decrease as the requirements change and we bill per hour for each iteration. In reality, ...
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3answers
6k views

What is a good estimation technique for initial, high-level estimates?

I'm currently using Planning Poker to do our detailed estimates. This works great but relies upon a fairly detailed work breakdown. Often it takes 6-8 weeks to get a sufficiently detailed design and ...
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207 views

How can I make a boss (or colleague) be more careful when estimating the complexity of a task/project?

I am a software developer, and I work in a small web development company. It seems to be a recurring theme that a middle-manager will ask me how long something will take, and when I give them my ...
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6answers
1k views

Assuming “clean code/architecture” is there a difference in “effort” between PHP or Java/J2EE web application development? [closed]

A client asked us to estimate effort when selecting PHP as the implementation language for his next web-based application. We spent about a week exploring PHP, prototyping, testing etc., We are quite ...
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2answers
1k views

What's the best way to estimate story points in scrum?

I like the way planning poker works at the beginning of any project, letting you compare and discuss details of each story with one another. One of the issues I've noticed with this is that through ...
6
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7answers
777 views

Estimated work remaining doesn't get lower [duplicate]

I'm working as a developer / architect on a software project. The project manager decided not to follow the Agile principles, but to rather have an Excel sheet with all the feature requests and their ...
6
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2answers
943 views

Is it okay to add time for “unexpected delays” to a time estimate?

I've landed my first contract (hooray, self employment!) and the company is asking for time estimates. Programmers are notoriously bad at time estimates, and I know I've been laughably wrong ...
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3answers
996 views

Is it proper to have Investigation task in sprint

I have been practicing agile for more than a year now. As part of our sprint, some times we will have Investigation Tasks. We skip poker planning for theses tasks, and adds blanket numbers. Theses ...
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4answers
930 views

Do you track progress during a agile sprint (iteration)

We have recently adopted (or are trying) to adopt managing our projects in an Agile manner. During our first sprint I asked our Scrum master (who also happens to be our primary resident Agile go-to ...
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7answers
1k views

Best way to estimate cost related to porting code from language A to language B?

Have a client thinking about estimating the cost of porting a project from language A to language B. What's the best way to put together an request for proposal to do this?
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3answers
695 views

How to infer my Assumptions I based my time estimate on?

In an answer on how to make time estimates it is said to write down all your assumptions you made when estimating a project. Seems like a good plan. Problem is, by assuming I already made an ass out ...
6
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4answers
814 views

Why is it suggested stories be sized to 2-3 days?

If sprints are on average 10 days, why is it often suggested stories be sized to 2-3 days? Related Question: How to handle backlog-items that are longer than one sprint?
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1answer
485 views

Why is there a 20 and not 21 in some versions of Planning Poker?

In Planning Poker, cards usually contain numbers of the Fibonacci sequence, which is 0,1,1,2,3,5,8,13,21,34,55 etc. However, you can see on the Wikipedia page (and this has been confirmed to me by ...
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3answers
3k views

How to estimate a timeboxed spike using story points?

So my team and I are quite new to Scrum and today moved from estimating in Ideal Hours to Story Points. All seems sound rationale, BUT with timeboxed activities. Here is the case, we have an ...
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4answers
2k views

In Scrum, what to do when story points and task hours don't roughly correlate?

Our development team is pretty new to the scrum process, so I would like to help refine our methods to make better use of it. In particular, I noticed that the correlation between story points and ...
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6answers
321 views

In scrum, how do you give an estimate for a backlog item that is primarily research?

A few sprints ago I was assigned a task that was primarily research. I had to figure out how to get our product to interoperate with a very complex black box that we did not develop. I couldn't ...
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7answers
3k views

What is the relationship between the time it takes to develop N lines of code and 4N lines of code?

It took me time T to develop program A, which is measured at 1000 lines of code (SLOC), in certain a language and domain and of a certain complexity. Is there a method to determine how much time it ...
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5answers
2k views

Should you ever re-estimate user stories?

My current project is having a 'discussion' which is split down the middle- "this story is more complex than we originally thought, we should re-estimate" vs "you should never re-estimate as you only ...
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7answers
5k views

What assumptions / disclaimers should be included with a software estimate?

I'm writing a lot of estimates lately and I'm finding that quite often, a client might argue scope, deliverables or (most often) cost. In an effort to ensure that the breadth of coverage (of client ...
5
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2answers
768 views

How do I survive in a Waterfall world? [duplicate]

I currently work in a company where the Waterfall model is deeply ingrained. We are pushing Agile principles but it's a long process. Meanwhile, I have to work in a Waterfall world with sequential ...
5
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2answers
717 views

Calculation of Milestones/Task list

My project manager assigned me a task to estimate the development time for an iPad application. Lets assume that I gave estimation of 15 working days. He thought that the number of days where too many ...
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6answers
186 views

Is timing exactly how much time each team member spends on a story useful in Scrum?

One of my colleagues has suggested timing how much time each team member spends on each user story. This seems to me likely confusing for the dev team during the iteration, and misleading as a metric ...
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3answers
1k views

Many user stories share the same technical tasks: what to do?

A little introduction to my case: As part of a bigger product, my team is asked to realize a small IDE for a DSL. The user of this product will be able to make function calls in the code and we are ...
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6answers
576 views

How does agile estimate the time required for a “research phase”?

According to canonical agile development, what is the appropriate amount of learning that an engineer should engage in before implementing a solution to a problem? If an engineer knows she is too ...
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4answers
399 views

Independency and estimation of user stories that rely on shared predecessor

Lest's say I have user stories about using product catalog in shop: As an administrator I can add/modify/delete catalog items (one or more user story, doesn't matter here) As a customer I can search ...
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1answer
189 views

Estimation of Effort and Schedule for a project with almost no familiar elements

To the best of my understanding the schedule for the project is derived using the effort estimates for the individual tasks (in person hours), and the number of relevant resources used for the ...
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418 views

What are the most relevant books on software task estimation for individuals? [closed]

What books have you read that helped you, as a programmer, learn to estimate time for completing small-to-medium programming tasks, such as bug fixes or implementing new features? Which have you the ...
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3answers
340 views

How should I log time spent on multiple tasks?

In Joel's blog on evidence based scheduling he suggests making estimates based on the smallest unit of work and logging extra work back to the original task. The problem I'm now experiencing is that ...
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4answers
635 views

What do you do to estimates for agile stories where developers are pair programming?

If it was a 2-point story for one person, would you double it if people are pairing? Pairing isn't always necessarily done 100% of a dev task, so it seems that doubling the story points seems ...
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6answers
821 views

How to measure when a software project is complete?

I have very limited experience in software project management roles, and I was asked this question by another engineer and I was sort of stumped. How do I measure when a software project is complete? ...
4
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4answers
1k views

If a story is de-scoped during the iteration then what to do with its estimate/size?

Sometimes we change user story scope to complete it during the iteration. For example, Original story (8 points): As a user i want to save my data as PDF. De-Scoped story: As a user i want to save ...
4
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3answers
592 views

Should we be completely honest to our clients about a time frame for a project?

I have been having this experience for sometime now, when a client needs a software product and contacts me, the client usually wants to know the time frame on which this product will be accomplished. ...
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2answers
577 views

Daily Scrum Meeting (Burndown chart)

Here is an example: early in the morning of the second day of the Sprint (during the stand up) I go to the board and see that the story I worked the previous day (first day of Sprint) contains a big ...
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3answers
20k views

How to calculate the size of a project in the days-person unit of measurement?

Once in a while I have read here and there the size of a project expressed in a matter of days-person or person-day. I may understand what this means, but I don't know on what do people base ...
4
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2answers
86 views

Concrete alternatives to inverse relationship between project completion time and number of developers?

Background It is now well understood (if not always well communicated) that the following logic does not apply to software development project estimates: A project that would take 1 developer 12 ...
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4answers
336 views

Estimating scrum points for non cross-functional team

We are working to transition our development team to be more Agile. I have a question about story point estimation and their relationship to an individual's skill. The scenario is that our team ...
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2answers
114 views

Estimating in groups - How to extract useful statistics / estimates?

As many other projects we have to estimate our jira tasks up front. This is obviously not fun and I've started hacking on a simple webapp to "gameify" this tedious process. My idea is that an issue ...
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5answers
200 views

Why are we anyway doing Software Estimation knowing it is broken? [duplicate]

This is one SW development problem that hits the sea of developers as they crash into the rocks of management. Somewhere down the line the estimate given by the programmer gets translated to a date ...
4
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2answers
120 views

What document/artifact should alert me when an old requirement changes the scope of new one?

I developed a software application a year ago, I delivered it with a simple documentation. For example, it has an special and complicated login system as requirement. Now the customer calls and ask ...