Questions tagged [estimation]

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.

Filter by
Sorted by
Tagged with
3
votes
2answers
598 views

Estimating time for planning and technical design using Evidence Based Scheduling

I'm at the beginning of a development project in a large organization. The Functional Requirements are currently being worked out and documented with our business stakeholders by our Enterprise ...
6
votes
4answers
2k views

How do freelancers know how much their work is worth? [closed]

I want to start a bit of freelancing in web development using ASP.NET MVC3 and PHP and I already have some people who are interested in hiring me, but I still can't figure out how much to charge for ...
2
votes
1answer
2k views

Personal Software Process (PSP1)

I'm trying to figure out an exercise but it doesn't really makes to much sense.. I'm not asking someone to provide the solution. just to try and analyse what needs to be done in order to solve this. I'...
9
votes
6answers
639 views

Who should participate in time estimation?

In an IT project: Who should participate in time estimation? Developer, team leader, scrum master and etc? Whose vote should be counted most?
18
votes
4answers
10k views

How to Determine # of Programmers needed for a project

How do you know how many programmers a particular project needs to be successful? The company I work for fulfills orders for client companies. We have written an in-house warehouse management ...
11
votes
6answers
1k views

How can I estimate projects when I need to include a learning curve for new technology?

Sometimes, there are research and development projects where nothing is known in advance about the technology, concepts, and client. However, the manager still needs time estimates. What can I do to ...
11
votes
3answers
692 views

How to handle estimates for programmers joining the team?

Iteration has already started, new programmer joins the team, task X has already been estimated to be 30 hours by a different developer. What is the best practice in this situation? new developer ...
6
votes
4answers
3k views

Quantitfying a cost for a software project [closed]

Disclaimer: I didn't know exactly where to put this question. If you feel that this question is not suitable for Programmers @ StackExchange, feel free to migrate it. Background: Broadening my last ...
1
vote
1answer
59 views

Separate Pages Separate Loads?

Working on two formats throughout our website - PC and mobile. Each request will have a check who the client is. Then, two methods seem optional: Render the page accordingly. Redirect to a parallel ...
7
votes
3answers
1k 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 ...
31
votes
7answers
13k views

How do you decide how much your software will cost? [closed]

If you are a solo developer, or have a leading role in a software company, you might have to decide how much your software will cost one or another day... What is your experience with calculating how ...
22
votes
9answers
1k views

What do you think of “Planning Poker”? [closed]

Planning Poker Summary, in case you don't want to read the wiki article: Get a list of tasks you want to do for the upcoming iteration For each task: 2.1 Discuss with the group what it entails 2.2 ...
0
votes
2answers
878 views

Which user-story estimation technique is better? [closed]

I found two techniques for estimating user stories: by the size of the story, which is unit-less by the time estimate, which is measured by days The first uses relative comparison between stories ...
8
votes
6answers
636 views

Estimating Cost of modifying someone elses code [closed]

I am relatively new to web development and haven't had to provide estimates for many large projects yet (my last large project was just paid for by the hour without a strict deadline or budget). A ...
1
vote
1answer
286 views

Project estimates for unreal tasks

I'm a developer in large IT company that is centered around providing services to clients (by that I mean development department is <20 people and not a major part of organisation). I'm solving ...
5
votes
3answers
409 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 ...
6
votes
1answer
258 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 ...
5
votes
2answers
1k 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 ...
12
votes
4answers
491 views

Handling “related” work within a single agile work item

I'm on a project team of 4 devs, myself included. We've been having a long discussion on how to handle extra work that comes up in the course of a single work item. This extra work is usually things ...
6
votes
2answers
6k views

How much extra time is needed to add unit test in a development task?

My team is considering moving to test-driven development. Currently we have almost no unit testing, we have been only relying on the user acceptance test, and developer's own manual test. Not everyone ...
5
votes
7answers
5k 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 ...
-1
votes
1answer
275 views

Is there any method to estimate the cost for source code verification?

I am in need of an estimation technique to verify if the source code delivered is appropriate. for example, if the vendor has developed an application and is surrendering the source code, me as a ...
6
votes
4answers
3k 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?
14
votes
5answers
2k views

Scrum re-estimation of stories

Every day, after the stand-up, my team and I update our estimates for each story. I have a feeling that there is something wrong with the way we do it, so I need your help. This is how we do: Story ...
6
votes
3answers
5k 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 ...
7
votes
3answers
1k 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 ...
2
votes
1answer
432 views

Orthogonal design for product pricing and production planning with a NoSQL database [closed]

I am in the process of developing extensible software for the company I am working with for product pricing and production planning. The Present Scenario There are basically two types of products: ...
5
votes
6answers
2k 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? ...
9
votes
3answers
914 views

What is the best/ethical way to estimate code clean-up? [duplicate]

I have been working on a product line since my senior year of college for my current employer. Now several years out of college I am in a position where I am giving estimates for change requests on ...
0
votes
1answer
4k views

When will be your project finished? How long does it take to complete it? Any idea how do you estimate such timing on the spot? [duplicate]

Possible Duplicate: How to respond when you are asked for an estimate? In my company, i have a strange managers, they always asks me before starting how is it going? And how long it will take to ...
35
votes
5answers
27k views

Am I programming too slow? [closed]

I've only been a year in the industry and I've had some problems making estimates for specific tasks. Before you close this, yes, I've already read this: How to respond when you are asked for an ...
3
votes
4answers
368 views

is there any relationship between a story point in two different projects?

Assume we have two projects and one or more teams (one team doing the projects in serial or two teams doing the projects in parallel). If Team A decides that a task is 8 story points and Team B ...
15
votes
2answers
5k views

Is it Ok to change estimates in the middle of an iteration?

We have started using Agile/Scrum in a team of 4 developers. We did our story estimations and ordered the stories Primed stories in the product backlog. We started with the point based estimation on ...
26
votes
11answers
3k views

What to do when time estimation goes wrong?

Let’s say you estimated time for a case to be 3 days. In day two you notice that the case is growing and new scenarios are popping up which were not counted when the time estimation where done. The ...
6
votes
7answers
12k 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 ...
12
votes
3answers
5k views

How can I estimate the value of an open-source project?

I am trying to generate a metric for a company cost savings goal. To do this, I want to estimate the savings we realized by using an open source web application rather than building it from scratch or ...
7
votes
4answers
2k views

What should I keep in mind when writing custom software quotes? [closed]

I've been asked to give a quote to extend a piece of software i'm currently giving away for free for use by a company. They tell me they are using it in-house at the moment in conjunction with some "...
12
votes
7answers
774 views

Is there really a relationship between number of people assigned to a project and the number of defects?

Here is a quote from a training manual at work regarding SLIM and software estimation: Notice also, there is a correlation between Effort and Defects. This means, the more people there are assigned ...
7
votes
3answers
858 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 ...
7
votes
3answers
451 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, ...
9
votes
4answers
1k views

What could be a good team building activity to improve estimation skills? [closed]

I'm putting together a presentation to deliver to some of my teammates (all developers), and I'd like to include a short team building activity that focuses on improving estimation skills. Does anyone ...
3
votes
2answers
854 views

Reestimation (ideal hours + elapsed time)

At the beginning of every iteration our whiteboard is covered with "not started" stories estimated in IDEAL HOURS. On a daily basis we update these estimates to keep track of each task's progress. I ...
4
votes
3answers
624 views

In what visual format should I present an estimate for a software project?

What I mean is, do people print some kind of line item form? What data does it contain? What are the line items usually? Otherwise, do you just present a written document describing with a paragraph? ...
0
votes
2answers
220 views

Great companies using FPA as cost estimation

Anyone know if great enterprises (Google, Oracle, SAP) uses Functional Point Analysis to estimate software building effort?
19
votes
3answers
892 views

Providing Estimates When working With Unfamiliar Technology?

I was presented with a new problem recently, to provide an estimate for a project in which I must use a framework (and potentially bits of another framework) that I am unfamiliar with. It's much ...
5
votes
6answers
192 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 ...
7
votes
7answers
1k 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 the ...
3
votes
5answers
522 views

How do you manage project estimation and managing your teams time

I'm thinking of things like: designating a developer having say 6 hours out of their normal 7.5 hour day dedicated to the project, the rest for other work/company related activity (meetings, emails, ...
8
votes
7answers
3k 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?
66
votes
19answers
5k views

Dealing with awful estimates

A recent project I worked on was proven to be severely underestimated by the architect. The estimate was out by at least 500%. Unfortunately I was brought onto the project after the estimate had ...