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  • What's the best version control/QA workflow for a legacy system?

    - by John Cromartie
    I am struggling to find a good balance with our development and testing process. We use Git right now, and I am convinced that ReinH's Git Workflow For Agile Teams is not just great for capital-A Agile, but for pretty much any team on DVCS. That's what I've tried to implement but it's just not catching. We have a large legacy system with a complex environment, hundreds of outstanding and undiscovered defects, and no real good way to set up a test environment with realistic data. It's also hard to release updates without disrupting users. Most of all, it's hard to do thorough QA with this process... and we need thorough testing with this legacy system. I feel like we can't really pull off anything as slick as the Git workflow outlined in the link. What's the way to do it?

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  • Big Oh notation does not mention constant value

    - by user883561
    I am a programmer and have just started reading Algorithms. I am not completely convinced with the notations namely Bog Oh, Big Omega and Big Theta. The reason is by definition of Big Oh, it states that there should be a function g(x) such that it is always greater than or equal to f(x). Or f(x) <= c.n for all values of n n0. My doubt is the why dont we mention the constant value in the definition? For example. lets say a function 6n+4, we denote it as O(n). but its not true that the definition holds good for all constant value. this holds good only when c = 10 and n = 1. For lesser values of c than 6, the value of n0 increases. So why we do not mention the constant value as a part of the definition.

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  • Inspirational software for end-users written in Haskell?

    - by Lenny222
    I think great technology ist invisible. Besides the usual suspects (GHC, Xmonad, proprietary trading software) what great examples are there for end-user software written in Haskell? I think good examples are FreeArc, Hledger and "Nikki And The Robots". Do you have more examples (full blown GUI apps, small CLI tools, etc)? Edit: For example i am fascinated by Wings3D, because while written in Erlang, users can not tell that. It just works. Among Haskell's weak spots are cross-platform GUIs. There are not many GUI apps written in Haskkel in general and most of them are no easy to use, install or even compile. What are good examples to learn from how to make hard things look easy?

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  • Why is Conway's "Game of Life" used for code retreats?

    - by blunders
    Code Retreat is an all-day training event that focuses on the fundamentals of software development. There's a "global" code retreat day coming up, and I'm looking forward to it. That said, I've been to one before and have to say there was a huge amount of chaos... which is fine. One thing that I still don't get is why the "Game of Life" is a good problem for TDD, and what good and bad TDD for it feels like. Realize this is a pretty open ended question, so feel free to comment.

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  • Online examples for software design diagrams

    - by Gerenuk
    Do you know where I can find a good example of software design diagrams and specs on the internet? Like UML, specs and similar. I'd like to understand this approach better. Before I just started coding and now I'd like plan more in advance. By diagrams I don't mean made-up examples, but something that would actually be used. Also it shouldn't be so trivial that there is no use of using diagrams. Ideally it shouldn't be too large either. Do you know a good online source? (this question is about online resources and specific examples only. it is not asking about books or advise how to learn software design.)

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  • Physics-based dynamic audio generation in games

    - by alexc
    I wonder if it is possible to generate audio dynamically without any (!) audio assets, using pure mathematics/physics and some input values like material properties and spatial distribution of content in scene space. What I have in mind is something like a scene, with concrete floor, wooden table and glass on it. Now let's assume force pushes the glass towards the edge of table and then the glass falls onto the floor and shatters. The near-realistic glass destruction itself would be possible using voxels and good physics engine, but what about the sound the glass makes while shattering? I believe there is a way to generate that sound, because physics of sound is fairly known these days, but how computationaly costy that would be? Consumer hardware or supercomputers? Do any of you know some good resources/videos of such an experiment?

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  • Which ATI driver version did 10.04 use?

    - by Jack
    I have a trouble with ATI driver with Ubuntu 12.04 LTS. When I install ATI driver in Ubuntu 12.04 via "Additional Driver", then I can't shutdown Ubuntu, it showed blank (black) screen and my laptop still run. Sometimes, my screen like that: http://www.youtube.com/watch?v=U9_iygesbBM But when I install Ubuntu 10.04 and install ATI driver via "Additional Driver", it's very good and no trouble I've seen. It's sweet but 10.04 is old and is supported to 4/2013. So I want to know why Ubuntu 10.04 works good better than 12.04 with ATI driver (in my case)?

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  • EaseFunction in LoopEntityModifier

    - by Siddharth
    For my game, I need EaseFunction in LoopEntityModifier. In my game, I am rotating ball over certain object. For giving effect I want to use EaseFunction. I want to rotate ball around an object take around 4 to 5 round that was already rotating but I want add some effect so that it looks good. For this I have to use EaseFunction which suits my needs. But if I put EaseFunction in rotation modifier then each round rotation modifier apply an effect of EaseFunction that I want only one time occur either starting or ending time. So if I can able to provide EaseFunction in LoopEntityModifier then it will good for me or something similar also work for me. At present my code is something similar like this. new LoopEntityModifier(new RotationModifier(...)); I hope someone has some idea on this.

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  • How agile methodologies can be applied in a typical " services " company?

    - by AlfaTeK
    My company is a custom software services company for external clientes, which means our typical project is one in which the contract already states the full budget of the project. Our typical project starts by defining requirements (improving the proposal high-level requirements), then we code the project, test it and ship it. We have an acceptance phase were the client tests the software and in that phase we can usually implement small changes asked by the client, or we charge extra for change requests. In some projects we have intermediate releases so the clients can check the progress of the project and give feedback on it. In summary: something like waterfall... I've followed the "agile" movement for a bit now and I always see it being a good match for a "product" company, or a company building software for an internal client. But are there good stories / advantages on using agile methods in my kind of company/projects? What are your experiences, what do you think about this?

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  • Open Source Shopping Cart Software

    - by Cecil
    Ive come into a bit of an issue lately regarding shopping cart software, and i would like some recommendations. I have been an OsCommerce developer for years now, and im finding alot of my clients are wanting updated looking backends ... OSC is fantastic, but the fact that its not being updated anymore and that its clunky and table based is taking up quite a bit of my time. I have built a few sites on Magento, and although it gives quite a good backend, it is the slowest shopping cart i have ever come across in my time, that and the fact that modifying it takes years, has convinced me not to use that again. So, i like any input as to what people are finding good in todays open source shopping cart software.

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  • What's the best way to get up to speed with Java?

    - by Kosta
    I'm a software developer that just switched teams so I shall write code in Java now. Last time I wrote something in the language was in programming 101 at uni (I was already an amateur coder back then). So what is the best book/tutorial to get up to speed with Java? Where's the Java - the good parts? Learn you some Java for great good? Learn Java the hard way? Or is it too enterprisey for that kind of passion...?

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  • I want to master ASP.NET - What concepts should I focus on/What concepts do you most value?

    - by Josh
    I start a job this summer doing work in ASP.NET 4 (C#). I plan on working with some legacy code as well as MVC. I want to get a running start. I have good understanding of HTML/CSS/Javascript, and pretty good understanding of C# itself, Design principles, Design Patterns, and understand masterpages, basic MVC2, and code behinds for web forms. In your opinion what aspects of ASP.NET are the most important to master for web applications? What do you value most in your usage of ASP.NET? Do you have a recommendation for understanding the internals of ASP.NET itself?

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  • Dynamic body implementation

    - by ArturoVM
    I am writing a 2D game where one of the characters has some very particular requirements. This character is a body with no particular shape (similar to a fluid, but not so much), it has to be able to grow and shrink (as in actually growing, not just scaling), and it has to have collision detection (even if it's basic). Because of this requirements, it obviously can't be based on a sprite, so direct rendering of the shape should be the logical thing to do. I assume this is no easy task, but I just couldn't find a good physics engine that covers these requirements (or at least no tutorial on how to do it; I particularly searched for Box2D tutorials). Is there a way of doing this with Box2D, SDL, or any other physics or game engine out there? If not, what's a good place to start? I am really clueless as far as soft-body physics are concerned.

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  • Memory Management/Embedded Management in C

    - by Sauron
    Im wondering if there is a set or a few good books/Tutorials/Etc.. that go into Memory Management/Allocation Specifically (or at least have a good dedicated section to it) when it comes to C. This is more for me learning Embedded and trying to keep Size down. I've read and Learned C fine, and the "standard" Learning books. However most of the books don't spend a huge amount of time (Understandably since C is pretty huge in general) going into the Finer details about whats going on Down Under. I saw a few on Amazon: http://www.amazon.com/C-Pointers-Dynamic-Memory-Management/dp/0471561525 http://www.amazon.com/Understanding-Pointers-C-Yashavant-Kanetkar/dp/8176563587/ref=pd_sim_b_1 (Not sure how relevant this would be) A specific Book for Embedded that has to do with this would be nice. But Code Samples or...Heck tutorials or anything about this topic would be helpful!

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  • Should I go back to college and graduate with a poor GPA or try to jump into an entry-level development position? [closed]

    - by jshin47
    I once attended a top-10 American university but I am currently not in school for several different reasons. Chief among them is that I did very poorly two semesters and even failed one of them (got two F's) which put me in automatic suspension. My major is not CS but math. I am in a pickle at the moment. After I was suspended I got a job at a niche IT company in the area. I am employed as something of an IT generalist; my primary responsibilities are Windows systems administration/networking but I also do some Android, iOS, and .NET development. I have released a few apps to the app store under my name and my company's name, and we have done work for a few big clients. I started working at my job about 1.5 years ago and I am somewhat happily employed but I do not see it as a long-term fit because it is a small company with little opportunity to advance. I would like to move out to California and particularly to the Bay Area to get a job at a more reputable or exciting company, even at a lower rate of pay, but I am not sure if I should do that or try to go back to school. If I went back to school, it would take 1-1.5 years to graduate and some $. Best case scenario I would graduate with a 2.9 or 3.0 GPA. It is a top-10 school, but that's a crappy GPA. If I do not go back to school, I will be a field where most people have degrees, without a degree. If anything goes wrong I could be really screwed as I feel I will get no respect without a degree. On the other hand I really would like to get started in the field and get more serious about developing good development practices, learning new languages/frameworks, and working with people who know a lot more than I so I can learn and grow as a developer and eventually do my own thing. Basically, I am wondering: Should I just go back to school? How much does the bad GPA / good school reputation weigh in? What about the fact that I am a Math major and not a CS major (have never taken a CS course)? Does my skill set as something of a generalist bode well for me finding work at a start up in the Bay Area? If not (2), should I hunker down and focus on producing a really good (or a few medicore) iOS apps? Android apps? etc... How would you look at someone who did great in HS, kind of goofed off in college and eventually quit, and got into development? Thanks for any thoughts or input.

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  • How does PHP5 fare with earlier versions of the language

    - by Pankaj Upadhyay
    I would like to learn PHP for web development but have been drawn back because of comments like the following*: PHP is good but generates spaghetti code PHP is nice but Python is marriage material PHP lacks stuff that you get in other languages like C# or Java But for PHP5 I have seen some promising comments. So, my question is: How does PHP5 fare with earlier versions of the language and is it good enough now to learn for web development. * Comments are just for reference not to incite a flame war. No comparison of PHP with other languages is asked for here. Please comment just on PHP5 and how it compares with earlier versions.

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  • How does PHP5 fare with the earlier versions of the language

    - by Pankaj Upadhyay
    Many times, I like to learn PHP for web development but been drawn back due to comments like the following :- (Comments are just for reference and does not invite Flame-war) "PHP is good but generates spaghetti code" "PHP is nice but Python is marriage material" "PHP lags stuff that you get in other languages like C# or JAVA" But for PHP5 i have seen some promising comments. So, What my question is how does PHP5 fare with the earlier versions of the language and is it good enough now to learn for web development. NOTE:- No comparison of PHP with other languages is sorted here. Please comment just on PHP and it's comparison with itself

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  • MS in Computer Science after BE in electronics

    - by Abhinav
    I am doing my 3rd year Bachelors in Electronics and Electrical Communication but from the first year I have been interested in Computer Science. But at that time it was just my hobby. But in second year when I joined robotics my love for computer science rose. I with my team came in top three in 2 National Competition (Technical fests of different IITs) where we used Image Processing, Hardware interfacing etc. But then I realised that Computer Science is not just about coding. I took many lectures from online free schools like Udacity, Coursera in subjects related to Artificial Intelligence, Building a Search Engine, Design and Analysis of Algorithm, Programming a Robotic Car, Programming Languages, Machine Learning, Software Engineering as a Service, WebApps Engineering, Compilers, Applied Crypotography etc. I also did some courses in Core and Advanced Java in my second year from training institute. I will also be taking course in Statistics, Databases, Discrete Mathematics from 25th June. Now I realized how vast is the field of Computer Science and how efficient you become on deciding algorithms and classifying problems into different subfields which have been thoroughly researched so you don't always do brute force thing or naive programming. Now this field has become kind of passion for me. Adding to the fact I am also doing my 6 months internship in software field in Texas Instruments where I am working on Automation and Algorithms. I also have some 5-6 good college level projects in Softwares and Robotics. I also like Electronics but only some fields like Operating System(this subject was there in Electronics also), Micro Processor, Digital, Computer Architecture, DSPs etc. I really want to pursue MS in some field of Computer Science. I am giving GRE in October/November. Till now I have good CG of around 9.4/10 and my 1 year in college is still left. Do I have any chance that some good University in US will consider me for MS in field related to computer science or Robotics. Also Can you suggest somethings that I can do during this 1 year to increase my chances for MS or should I apply for EECS(Electrical Engineering and Computer Science) and then I can shift more towards Computer Science as my major option. My main aim is to do Phd after Ms in CS if I am able to do that somehow. I know that I have to put much extra effort to understand things in MS than CS undergraduates but I will do that with my full dedication, also when I communicate with my college CS students or during my internship period I didn't feel that I am missing very much stuff that they know and was very comfortable during my internship with software employees.

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  • App Development books for intermediate level

    - by 0cool
    This question seems to be asked previously on this site but the audience targeted are different. I am an Engineering student who knows Python, C and familiar with Java(learning now; good at fundamentals) & HTML. Now, I want to develop facebook & Android apps. I went through their respective documentations but couldn't really understand and thought to search for beginner books but they have been written from too basic. (There is an beginner's android book for from APress for people who have no idea of programming). My problem is, I am unable to find the right book to learn. Either they are for beginners or for experts... For guys like me, can anyone point out a good book?

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  • Community to discuss project ideas

    - by Auxiliary
    Although I already predict the down votes but the question has stuck in my throat for a while now. I think this has happened to many of us. Sometimes we find a great idea for a project and obviously think this is THE GREATEST idea ever but then one of the following things will happen: The project is a small one, so you might actually give it a try and see how it goes. The project is a big one, even a risk, and you just need a good programmer's community that you could just discuss your idea with them and see what they say and even get some help to make it happen. And there's always the possibility of others stealing your idea which is really bad. So could anyone suggest an online community or place or even method of talking about ideas and the ways of developing them? and do you think it's a good thing to tell others about your idea?

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  • Architecture for subscription based application

    - by John
    This is about the architecture of my application I think. I have a Rails application where companies can administrate all things related to clients. Companies can buy a subscription and their users can access the application online. Hopefully I will get multiple companies subscribing to my appplication/service. Thing is, what should I do with my code and database? Seperate app code base and database per company One app code base but seperate database per company One app code base and one database The decision I am to make involves security (e.g. user from company X should not see any data from company Y) performance (let's suppose it becomes successful, it should have a good performance) and scalability (again, if successful, it should have a good performance but also easy for me to handle all the companies, code changes, etc) For sake of maintainability, I tend to opt for the one code base. For the database I really don't know at this moment. So what do you think is the best option?

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  • What if you don't have code samples to give a prospective employer?

    - by lucks
    What do you do when you don't have any good code samples available when asked by a prospective employer? I like to consider myself a fairly capable developer but I can't share any of the software I've been writing for my company the last few years. Unfortunately, I haven't been able to find the time to put much work in my personal projects either. Basically, I don't think I can find any code samples that are a good representative of my skills that I can share. Any ideas? Thanks in advance.

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  • Business Choices and Evony

    - by Robert May
    Recently, I’ve been playing a game called Evony, and I finally decided to quit the game and thought I should warn others who might be tempted.  I also find a lot of insight with this game as an example.  A few of the companies that I’ve worked with or worked for have been like this and they are NOT good places to be. Evony is a joke designed to milk as much money out of people as possible.  As a professional software developer who mentors teams on how to build better software, here's what I see: They obviously offshore all development and have little oversight over that offshore development, and they probably have a small team at that.  Evidenced by the poor grammar throughout the game. They're seeking to maximize revenue and pushing to do as little development as possible, which would mean a small team. They're horribly understaffed in the customer support department as evidenced by never replying to this forum and never responding to bug reports or help requests (I've had one open with no response AT ALL for over a month . . .) They have way inadequate testing, no CI, and probably no automated unit tests.  You can see this by the poor grammar throughout the game and the type of bugs that show up. They aren't following a formal development process (no Agile, Waterfall, or anything else) as evidenced by their lack of predictable release cycle and lack of visibility. I'm guessing that the internal code base is terrible, otherwise, there wouldn't be an "Age II" that had nothing more than a new visual interface and a few rule tweaks.  This is also evidenced by the itty bitty scope of bug fixes and their inability to really fix bugs. Their Architect sucks.  Really, 42k user is all you can handle on a single server?  Could you REALLY not come up with a better way to scale to handle users?  They've built isolated worlds, instead of a single continuous world. Back to milking people for money--to really progress, you have to spend money. All of this adds up to knowing, deliberate actions on the part of management.  They CHOOSE to do this (like AOL choosing to send more discs instead of improve quality). So, what can we learn? This game will never really improve, since the bosses don't care, they're only in it for the money. The game will never have good support.  Again, the owners don't care. Giving them money only perpetuates this scam (and yes, I've given them money, way too much money. :() They don't care if you quit.  There's a new sucker born every day. Don't EVER go to work for them.  I've worked both with and for people like this and the culture is NEVER good. Ah well. Technorati Tags: Evony

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  • Want to develop my own primitive physics engine, don't know how to start with it's high-level architecture. Suggestions?

    - by Violet Giraffe
    Few years ago I tried to make a simple 3D game - billiards. Completed like 50%, stuck with physics. Basically, I only need to calculate balls rolling over flat surface, but it would be nice to make something more flexible. I know all the formulas and laws (most of them, anyway). the problem is I have no idea of how to make good physics engine architecture-wise. I tried google and other forums but didn't find what I was looking for. The only suggestion was to look at open-source engine, but I'm not that good a programmer to make heads or tails out of it...

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  • Trying to Organise a Software Craftsman Pilgrimage

    - by Liam McLennan
    As I have previously written, I am trying to organise a software craftsman pilgrimage. The idea is to donate some time working with quality developers so that we learn from each other. To be honest I am also trying to be the worst. “Always be the worst guy in every band you’re in.” Pat Metheny I ended up posting a message to both the software craftsmanship group and the Seattle Alt.NET group and I got a good response from both. I have had discussions with people based in: Seattle, New York, Long Island, Austin and Chicago. Over the next week I have to juggle my schedule and confirm the company(s) I will be spending time with, but the good news is it seems that I will not be left hanging.

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