Estimating the time required to perform some task or tasks.

learn more… | top users | synonyms

98
votes
20answers
4k views

Project Manager that wants to lock in time estimate with a signed contract

At a previous employment, a project manager (PM) wasn't satisfied with the delivery time of the code on a project I was on. I was told by my project lead that that the PM was considering having me ...
61
votes
18answers
4k views

Completion time on a company where the supervisors don't know programming

We are in a small company with around 10 developers. I am the team leader and responsible for the development process. Supervisors and salesmen are close to us since we are a small team, but have no ...
48
votes
36answers
2k views

What can I do to get better at estimating how long projects are going to take? [duplicate]

I don't want to make life hard for management. I really don't. They're nice enough guys, but every time I am assigned a new project or task and get asked "how long do you think it will take to do ...
25
votes
7answers
2k views

How to explain that it's hard to estimate the time required for a bigger software project?

I'm a junior developer and I find it hard to estimate how much time it takes to finish a bigger software project. I know how to structure the architecture in general, but it's hard for me to know what ...
24
votes
13answers
1k views

Sales Manager: “Why is time-estimation so complex?” [duplicate]

A few days ago a sales manager asked me that question. But at this moment I didn't know a answer which he can understand. He isn't a programmer! At the moment I work on a product which is over 8 ...
22
votes
13answers
2k views

Encouraging software engineers to track time

How can I encourage my coworkers to track the time they spend resolving issues and implementing features? We have software to do this, but they just don't enter the numbers. I want the team to get ...
22
votes
11answers
1k 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 ...
18
votes
3answers
578 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 ...
11
votes
6answers
2k views

What is the acceptable error margin when estimating a project duration?

The company where I work is aiming to have a 10% maximum error margin.They expect analysts to not miss the estimate by more or less than 10%. I don't know what to think about it, since I got nothing ...
11
votes
6answers
680 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 ...
8
votes
7answers
677 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?
8
votes
6answers
546 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?
7
votes
9answers
2k views

How to answer “When will it be done?”

We all have it, problems that prove difficult to fix and working out a fix through obscure code and bizarre unexpected functionality. Slowly, logically working your way through trying to find ...
7
votes
5answers
475 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 ...
7
votes
5answers
603 views

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

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 ...
6
votes
2answers
3k views

Which string search algorithm is actually the fastest?

I have been stuck for some time on which is the fastest string search algorithm, heard many opinions, but in the end I'm not sure. I have heard some people saying that the fastest algorithm is ...
5
votes
7answers
492 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 ...
5
votes
7answers
2k 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 ...
5
votes
2answers
549 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 ...
5
votes
2answers
432 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 ...
5
votes
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 ...
4
votes
3answers
334 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 ...
4
votes
3answers
421 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. ...
4
votes
3answers
7k 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
votes
2answers
379 views

Efficient way to create a code estimation/technical specification in a fast-moving environment

To better understand my question, let me elaborate the background of the subject matter. I work in a financial institution where the business module (credit finance) is constantly changing. In the IT ...
4
votes
3answers
294 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 ...
3
votes
5answers
279 views

How to accurately predict release items? [duplicate]

We are having a disconnect between development and business needs. Business is asking me to produce an accurate list of deliverables for a fixed date and development being difficult to predict is ...
3
votes
5answers
362 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, ...
2
votes
3answers
486 views

Setting Deadlines in software development [duplicate]

I have been working on a system alone for about two years. I inherited the system from a contractor who spent about two years working on it before me (alone). The system is not particularly well ...
2
votes
2answers
1k views

Good examples for teaching software estimation (size, schedule, effort)?

I'm going to be teaching a class that covers a broad brush of estimation techniques. I intend to cover absolute estimation techniques based on SLOC (e.g. Function Points, COCOMO II etc.) and ...
2
votes
2answers
404 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 ...
2
votes
3answers
264 views

Delivering estimates and client expectations?

When a client asks for an estimate on how long it would take to develop different sections of an app, is it best to give them a total amount or what it would take for each section? Is it better/more ...
1
vote
5answers
1k views

Statistics on time estimates for web application

I have been asked to help estimate the time it would take to develop a web application. I will not be involved in the actual programming, but I am participating as an "experienced" programmer. The ...
1
vote
3answers
216 views

Quoting for a project with closed source

I sit with a project that I need to quote, and until the job is awarded, I can only use "View source" to check, and ask a few questions about the system. That makes quoting outright impossible for me ...
1
vote
2answers
2k views

How are effort estimations and duration estimations distinct?

How are effort estimations and duration estimations distinct? At present my understanding is that effort is related to the amount of work required for one person to complete a task, and duration is ...
1
vote
1answer
98 views

How long do you spend on analysis? Is this analysis paralysis? [duplicate]

I am not very good at estimating how long a piece of work will take to complete. I am guilty of putting my finger in the air and guessing. Usually things are later than expected, however sometimes ...
0
votes
4answers
376 views

How do you estimate? [duplicate]

Possible Duplicate: How to respond when you are asked for an estimate? What are the estimation methods you use in real world projects and found it to be useful. I know there will be lot of ...
0
votes
1answer
580 views

Where did the estimation rule of thumb originate that time spent will be one-third in each of the following: design, implementation, and testing?

I'm looking for a reference to the following. I commonly hear that one-third of a projects time will be spent in design, one-third in implementation, and one-third in testing. The three phases of ...
0
votes
2answers
172 views

estimation method at the “just finished definition phase”

We are basically using Waterfall life cycle methodology. Requirement Analysis: I get a use case created by some one else. Design (talking only about Low level design): I get some little feeling about ...
0
votes
2answers
757 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 ...
0
votes
1answer
123 views

How to handle a client that wants me to use code from Google under all circumstances? [duplicate]

I have a client that has been upset with the fact that it takes more time than he thinks to complete a feature / bug in a web application. He is more of a project manager that has hired me as a ...
0
votes
1answer
63 views

Time complexity implications when designing shell scripts for large data/high number of files?

There are many questions about the performance of commands or scripts on the U+L SE asset. As time is of the essence, this is often evaluated using the bash time reserved word or the external time ...
0
votes
1answer
49 views

Estimating time remaining in a queue with multiple workers

I've been trying to figure out a way of calculating the estimated time remaining for an item in a queue when there are multiple workers processing items from the single queue. A client submits a job ...
0
votes
1answer
86 views

Using commit messages for time tracking

Some products can parse a special syntax in commit messages to extract additional data, such at time tracking information: https://confluence.atlassian.com/display/FISHEYE/Using+smart+commits To me, ...
0
votes
1answer
88 views

Tool helping with estimations [closed]

I am looking for a tool supporting me with estimations. What I would like to do is to specify a higher level task and break it into several smaller tasks. When a task is small enough, I could assign ...
-1
votes
1answer
87 views

Optimal movie schedule

Let's say Mr. A goes to cinema and he gets a movie schedule. There are N movies on the program today (1 < N < 50) and for every movie the time of the start and the time of the end are given in ...
-3
votes
1answer
3k views

quick approach to migrate classic asp project to asp.net [duplicate]

Recently we got a requirement for converting a classic asp project to asp.net. This one is really a very old project created around 2002/2003. It consists of around 50 asp pages. I found very little ...