# Tagged Questions

30 views

### How can I get the transit time for packets for a jitter buffer?

I'm trying to wrap my head around the concept of a real jitter buffer. I'm basing the only knowledge that I have around this article: http://toncar.cz/Tutorials/VoIP/VoIP_Basics_Jitter.html This ...
1k views

### Time estimating of a complex bug investigation (not a straight-forward one) [duplicate]

(It is not a duplicate: Bug investigation is much more non-deterministic than a defined development task where things to be done are specified. Investigation is about narrowing a huge search space, ...
2k views

### Good examples for teaching software estimation (size, schedule, effort)? [closed]

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 ...
193 views

### Point estimates scale skewed

When using planning poker for estimates, we've ended up with effectively a non-linear points scale. By that I mean that point value is inconsistent for one-pointers and, say, eight-pointers. Couple ...
168 views

### How to set more accurate “deadlines”? [duplicate]

Context: My work is to build financial reports using mostly Excel spreadsheets. This consists mostly of formulas and a good deal of VBA. Each person is built by a single person. We service many ...
965 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 ...
2k views

### Why are deadlines always so short? [duplicate]

I'm a junior developer in a small company (in a team of 2 developers). Everytime we are asked to implement a new feature: the deadline is set so that we just have time to do the development: there ...
118 views

### How do you deal with being behind on a task? [closed]

I have a question for you guys. Say, you're given a task as an item in a product backlog. Say, you have a deliverable that's due the following day. If you're behind on the task compared to when you ...
63 views

### Are there any public statistics on the implementation time of software tasks? [closed]

I'd like to get better at estimating how long it will take me to complete tasks. When estimating things I know little about, I think it's best to start with base rate information and adjust it based ...
148 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, ...
693 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 ...
250 views

### Quoting for a project with closed source [closed]

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 ...
10k 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 ...
115 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 ...
153 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 ...
113 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 ...
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 ...
3k 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 ...
5k 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 ...
3k 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 ...
528 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. ...
3k 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 ...
185 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 ...
772 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 ...
5k 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 ...
775 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 ...
456 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 ...
4k views

### Completion time on a company where the supervisors don't know programming [duplicate]

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 ...
4k 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 ...
3k 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 ...
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 ...
443 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 ...
99 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 ...
6k 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 ...
1k 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 ...
512 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 ...
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?
570 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?
751 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 ...
4k 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 ...
832 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 ...
324 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 ...
592 views

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 ...
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 ...
565 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 ...
14k 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 ...
466 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 ...
2k 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 ...