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  • What are the essential things one needs to know about UML?

    - by Hanno Fietz
    I want my scribbles of a program's design and behaviour to become more streamlined and have a common language with other developers. I looked at UML and in principle it seems to be what I'm looking for, but it seems to be overkill. The information I found online also seems very bloated and academic. How can I understand UML in plain-English way, enough to be able to explain it to my colleagues? What are the canonical resources for understanding UML at a ground level?

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  • Beats Audio Headphones is the best passion of those designs

    - by WoolrichParka
    Beats By Dre Pro is accordingly smarter to buy the headsets on the internet back you will get a huge gathering of headsets place you can gently be able to achieve an overall choice.I want to give monster surpasses headsets all the awards because they create viewing activities about the Globe Cup so interesting.It has aegis adjoin your anthology and beanbag aggressive awnings recognizing the clover autogenously and abiding external.They are use firm with Beats Headphones tv set can also be incredibly common.wufengfengmaple36

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  • Ubuntu 12.04 Precise on Dell Inspirion Duo

    - by Roman M. Kos
    I installed 12.04 version of Ubuntu on my Dell Inspiron Duo. After installing with help of program like UNetBootIn or smth like that. ( Besides i have no problem with kernel panic on chargin on/off like in 11.10. ) After that i followed with steps from here, in the first post here: http://ubuntuforums.org/showthread.php?t=1658635 There left one big problem with touchscreen: When i whant to drag with touchscreen like i`m doing it with mouse (for ex. selecting multile files with mouse) the selectable rectangular doesnot shows while im dragging, when dragging was finished (i put my finger off) it shows the rectangular and hides it. This thing disables all my tries to drag a window or smth else.... Also some time after using touchscreen such things are disabeling: - Often - click from a mouse (after keyboard using functinality restores) - less often - mouse movement disables (sometimes restores sometimes not) - lesser than other - keyboards works but no sygnals accepting (keyoards has indicator, so thay react, mouse of course not) The test from eTouchU utility passes perfeclty. Any idia for solving this problem? P.S.: Im from Ukraine, so sorry if my possible grammar mistakes. P.P.S.: Besides how to know the physicall position of my tabled mode? For automaticall rotating. Like on each rotation do some script.

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  • Making Use of Advanced Search Operators

    Search engines have set up extra tools referred to as advanced search operators to give professional users additionally more manage when searching. Advanced search operators are unique words that you simply can insert inside your search item in order to find unique sorts of details which a common search can not supply. Numerous of those operators produce handy tools for SEO professionals as well as other people who want really special details, or perhaps who prefer to control their search to very specific results.

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  • MMORPG game balancing

    - by Gary Paluk
    I've seen a couple of examples of some game balancing techniques in books yet they are not comprehensive and not particularly aimed at MMORPGs but I'm looking for practical examples of game balancing techniques for MMORPGs. I am interested to know if anyone has documented the techniques used in popular games with proven success in this area. Ideally, any resource would cover most common types of stats and include layman mathematical models or techniques used to balance game mechanics found in advanced MMORPGs (I know it's a cliché, but WoW style) Any help would be great!

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  • I want to learn the basics of Game Development [on hold]

    - by Mary
    I have programming experience and I would like to know how to start building games. I'm interested in building games for desktops and Android tablets. Could you list the general steps of Game Building? From the more common programming languages used to the software and frameworks available at each stage? I'm just trying to get the big picture of all the different options and tools I have at my disposal. Please leave some book recommendations and useful links!

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  • GNOME session not starting after filesystem corruption

    - by user3215
    I'm running Ubuntu 9.10 desktop edition. Suddenly today /home became corrupted and I was prompted to run fsck manually. I ran fsck -y /home and rebooted the system. The system booted but I got no GUI interface (GNOME session) but a black screen with a user prompt instead. Any tricks here to start my system normally? Any help is greatly appreciated. EDIT:1 The error were similar to the the following(may be with some mistakes as I had to type it manually): machine1 login: root password: at login Sun Jan 16 15:30:46 IST 2011 on tty1 EXT3-fs error (devie sda1): ext3_lookup :deleted inode referenced aborting journal on device sda1 Remounting filesystem read-only root@machine1:~# startx ktemp: failed to create file via template `/tmp/serverauth.xxxxxxxxxxx: Read-only file /usr/bin/startx: line 157: cannot create temp file for here-document: Read-only file xauth: error in locking authority file /root/.Xauthority /usr/bin/startx: line 173: cannnot create temp file for here-document: Read-only file xauth: error in locking authority file /root/.Xauthority /usr/bin/startx: line 173: cannnot create temp file for here-document: Read-only file X: cannot stat /tmp/.x11-unix (No such file or directory), aborting giving up. xinit: No such file or directory (errno 2): unable to connect to xserver xinit: No such process (errno 3): Server error xauth: error in locking authority file /root/.Xauthority

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  • Is it okay for programmers to be given the task of outlining database requirements?

    - by L'Ingenu
    In my current job, dba's and programmers are divided in tasks. Any code that needs to be written in procedures dba's write, and programmers do only application code. The strange thing is that whenever a task needs to be defined/specced, programmers get the task, and we have to define all the procedures needed and what they should return. Is this a common practice in software development? Are programmers generally the ones tasked with building requirements for the database side?

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  • Path tables or real time searching for AI?

    - by SirYakalot
    What is the more common practice in commercial games; path lookup tables or real time searches? I've read that in many games path lookup tables are pre-calculated and baked into each map, so to speak, then steering behaviour is used to handle dynamic obstacles. or is it better practice to use optimised hierarchical A* searches? I understand the pro's and cons of each, I'm just curious as to what is most often used in the industry.

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  • Pages are indexed but disappear after few days

    - by Sergio
    My pages get indexed after 1 day, but some days later disappear from search results. Any idea why this happens? I've been trying to find any of the usual problems like hidden links or other issues, but can't find anything wrong. Here is an example. It was on first page until yesterday, today is gone. This is happening with all my pages lately, so I think it must be something common to all, but can't figure out what.

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  • Open Source Projects for Beginning Coders?

    - by MattDMo
    After working as a molecular biologist at the bench for many years, I lost my job last year and am thinking about a career change. I've been using open-source software and doing Linux system administration since the mid 90s, and have written/improved some small shell/Perl/PHP scripts, and am very comfortable building from source, but never progressed to creating non-trivial programs de novo. I want to move to actually learning real programming skills and contributing back to the community, with the possible eventual goal of getting into bioinformatics as a career in the future. I'm a stay-at-home dad now, so I have some time on my hands. I've done a lot of research on languages, and have settled on Python as my major focus for now. I'm set up on GitHub, but haven't forked anything yet. I've looked around OpenHatch some, but nothing really grabbed me. I've heard the advice to work on what you use/love, but that category is so broad that I'm having trouble finding any one thing to get started on. What are your suggestions for getting started? How do you pick a project that will welcome your (possibly amateurish) help? With a fairly limited skill set, how do you find a request that you can handle? What are common newbie mistakes to avoid? Any other advice?

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  • Applying Advanced Search Operators

    Search engines have developed additional applications termed advanced search operators to offer power internet marketers even more control each time searching. Advanced search operators are exclusive terms which you could place as part of your search query in order to come across unique sorts of details which a common search can not offer. A number of of those operators provide valuable tools for SEO specialists as well as other people who desire rather specific details, or maybe who need to restrict their particular search to extremely distinct source.

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  • is there a formal algebra method to analyze programs?

    - by Gabriel
    Is there a formal/academic connection between an imperative program and algebra, and if so where would I learn about it? The example I'm thinking of is: if(C1) { A1(); A2(); } if(C2) { A1(); A2(); } Represented as a sum of terms: (C1)(A1) + (C1)(A2) + (C2)(A1) + (C2)(A2) = (C1+C2)(A1+A2) The idea being that manipulation could lead to programatic refactoring - "factoring" being the common concept in this example.

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  • NVIDIA X Server TwinView isses with 2 GeForce 8600GT cards

    - by Big Daddy
    Full disclosure, I am relatively new to Linux and loving the learning curve but I am undoubtedly capable of ignorant mistakes I have a rig I am building for my home office desktop. The basics: Gigabyte MB AMD 64bt processor Ubuntu 12.04 64bit two Nvidia GeForce 8600GT video cards using a SLI bridge two 22" DVI input HP monitors So here is my issue (it is driving me nuts) with X Server. If I plug both monitors into GPU 0 X Server auto configures TwinView and all is grand, works like a charm, though both are running off of GPU 0. If I plug one monitor into GPU 0 and one monitor into GPU 1, X Server enables the monitor on GPU 0, sees but keeps the monitor on GPU 1 disabled. My presumption (we all know the saying about presumptions) is that all I would have to do is select the disabled monitor on GPU 1 and drop down the Configure pull down and select TwinView...problem is when the monitors are plugged in this way, the TwinView option is greyed out and can not be selected. What am I not understanding here? Is there some sort of configuration I need to do elsewhere for Ubuntu to utilize both GPU's? Any help will be most appreciated, thanks in advance.

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  • Program for Format Conversion of An Image

    .NET provides extensive support for image conversion. Any image can be processed from one format to another. Most common formats to which .NET have support for are .BMP, .EMF, .GIF, .ICO, .JPG, .PNG, .TIF and .WMF....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • The Benefits of Using Online SEO Tools

    Search Engine Optimization (SEO) can be a labour intensive process. Why not save some time and effort and use a few online tools to help accomplish the task in less time? In this article, I will look at some common tools, and show how they can improve your optimization and save you time.

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  • How do I keep controversy in check?

    - by Aaron Digulla
    This is probably OT but it's less OT here than on any other SO site, so please bear with me. I'm working on a new project votEm. The goal is to give independent candidates a platform to introduce themselves to get elected for a political office. My main reason is that today, it's too expensive to run for an office. Some politicians in the US spend as much as 30 million dollars (!) for a single campaign. That money is better spent elsewhere. In a similar fashion, people who want to change countries like Egypt, could use such a platform to present themselves. Now I expect a lot of emotions and pressure on my site. People with a lot of money (and a lot to lose) will try to game it (political parties, secret services of ... errr ... "not 100% democratic countries", big companies, ...) To avoid as many mistakes as possible, I need a list of resources, ideas and tips how to keep such a site out of too much trouble. PS: I'd make this CW but the option seems to be gone...

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  • How do you keep your basic skills from atrophy?

    - by kojiro
    I've been programming for about 10 years, and I've started to migrate to more of a project management position. I still do coding, but less often now. One of the things that I think is holding me back in my career is that I can't "let go". I think I fear letting hard-won programming skills atrophy while I sit in meetings and annotate requirements. (Not to mention I don't trust people to write requirements who don't understand the code.) I can't just read books and magazines about coding. I'm involved in some open source projects in my free time, and stackoverflow and friends help a bit, because I get the opportunity to help people solve their programming problems without micromanaging, but neither of these are terribly structured, so it's tempting to work first on the problems I can solve easily. I guess what I'd like to find is a structured set of exercises (don't care what language or environment) that… …I can do periodically …has some kind of time requirement so I can tell if I've been goofing off …has some kind of scoring so I can tell if I'm making mistakes Is there such a thing? What would you do to keep your skills fresh?

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  • 7 Preventable Backup Errors

    The loss of a company's data is often enough to put the company out of business; and yet backup errors are generally avoidable with the application of common sense rather than deep technical knowledge. Grant digs into memories of his long experience of giving forum advice, to come up with the most easily preventable backup errors. Get Smart with SQL Backup Pro Powerful centralised management, encryption and more.SQL Backup Pro was the smartest kid at school Discover why.

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  • How were some language communities (eg, Ruby and Python) able to prevent fragmentation while others (eg, Lisp or ML) were not?

    - by chrisaycock
    The term "Lisp" (or "Lisp-like") is an umbrella for lots of different languages, such as Common Lisp, Scheme, and Arc. There is similar fragmentation is other language communities, like in ML. However, Ruby and Python have both managed to avoid this fate, where innovation occurred more on the implementation (like PyPy or YARV) instead of making changes to the language itself. Did the Ruby and Python communities do something special to prevent language fragmentation?

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  • NHibernate tutorial #6 - Parent-Child Relationships

    - by BobPalmer
    I've finally had a chance to continue my NHibernate tutorial series after a series of vacations and events.  In this tutorial, I cover one of the most common relationships, that of the parent-child, in NHibernate.  I also go through some optimization refactoring along the way. You can view the entire Google Docs article here: http://docs.google.com/Doc?docid=0AUP-rKyyUMKhZGczejdxeHZfMzBmdjdzZDlkaA&hl=en   As always, feedback is appreciate! -Bob

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  • How to synchronize users, passwords, hosts, etc without NIS

    - by joshxdr
    I am administering a very small solaris 2.6 network with 4 boxes total. Is it possible to use scp or similar to replace NIS for synchronizing users, groups, hosts, etc? This network is only a small part of my job and I don't want to spend too much time on it, and I am worried the setup and maintenence of NIS will not pay off. I need it to behave like a proper multi-user system, when a user logs into any machine, the users, passwords, hosts, etc. are always the same. Is there an easy way to do this with scp? Right now I copy /etc/passwd from one box to another with scp, but sometimes I make mistakes or forget a step, and scp inside of shell scripts don't seem to works so well since they require password authentication. Any recommendations would be welcome.

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