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• System response times --- A good Service Level Agreement?

  - by mpeterson

  In order to view system performance, I have been asked by management to give page response times for a few key pages. I want to make sure I am giving a good picture of the overall health of the system, and not just narrowing in on a single measurement. So my question is: When developing software, what metrics would you provide to your stakeholders to indicate a system that is healthy and running well? (if it is not running well, that should also be evident! Not trying to hide/obscure any problems.)

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• Which API for cross platform mobile audio?

  - by deft_code

  This question focuses on the API's available on phones. I'd been planning to use OpenAL in my game for maximum portability. It runs great on Linux so I can quickly develop the Game and leverage it's superior debugging tools. However I've recently heard that Android doesn't support OpenAL well. Instead they've gone with a OpenSL ES library. What I'm looking for is a free Audio library that I can use with minimal custom code on iPhone, Android, and my Linux desktop. Does such an API exists? Some extra details: The game is written in C++ with custom minimal front ends. ObjC for iPhone, Java for Android, and SFML for Desktops. I'm using OpenGL ES for portability as iPhone doesn't support the more advanced OpenGL APIs.

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• Is it wrong to use a boolean parameter to determine behavior?

  - by Ray

  I have seen a practice from time to time that "feels" wrong, but I can't quite articulate what is wrong about it. Or maybe it's just my prejudice. Here goes: A developer defines a method with a boolean as one of its parameters, and that method calls another, and so on, and eventually that boolean is used, solely to determine whether or not to take a certain action. This might be used, for example, to allow the action only if the user has certain rights, or perhaps if we are (or aren't) in test mode or batch mode or live mode, or perhaps only when the system is in a certain state. Well there is always another way to do it, whether by querying when it is time to take the action (rather than passing the parameter), or by having multiple versions of the method, or multiple implementations of the class, etc. My question isn't so much how to improve this, but rather whether or not it really is wrong (as I suspect), and if it is, what is wrong about it.

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• Une mise à jour de l'antivirus McAffe crée un faux positif et cause le blocage de milliers de PC sou

  Une mise à jour de l'antivirus de McAffe provoque un faux positif, Et cause le blocage de milliers de PC sous Windows XP McAffe a annoncé que la mise à jour publiée hier pour la solution VirusScan Enterprise 8.7i SP3 contenait une erreur, et recommande à ces clients de ne pas l'installer. [IMG]http://djug.developpez.com/rsc/McAfeeVirusScanEnterprise.jpg[/IMG] La mise à jour en question a provoqué un faux positif qui a causé des graves problèmes sur des milliers de machines qui tournent sous Windows XP SP3 dans les entreprises. L'un des fichiers .DAT de cette mise à jour a identifié le fichier svchost.exe comme un virus (w32/wecorl.a) et l'a mis en quarantaine. Résultat : une sér...

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• Could JQuery and similar tools be built into the browser install?

  - by Ozz

  After reading another question about JQuery and CDN's, is it feasible for tools like JQuery to "come with" the browser, thus reducing/eliminating the need for the first download from a CDN, or from your own host server. JQuery files specifically are pretty small, so you could easily have a number (all?) of the different versions as part of a browser install. Now fair enough, this would increase install footprint, download time for the browser itself. Then sites could check "local" first, before CDN (which then caches), before finally defaulting to downloading from the website server itself. If this is feasible, has it been done, and if not, why hasn't it be done?

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• How to deal with characters picking up and dropping objects in a 2D game

  - by pm_2

  I'm quite new to game development, so would like to get a consensus on methods of doing this. My game features a 2D character that is able to pick up and drop objects, for example, a stick. My question is: is it advisable / possible to manipulate the image of the character and image of the stick to make it look like the character is now carrying a stick; or is it best to have a separate sprite sheet for the character with the stick and the character without? EDIT: To be clear - I have a lot of characters, with a few items (4 separate items and over 20 characters)

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• What is an effective way to organize tasks for a new project?

  - by Dulan

  Is there a practical solution to organizing the initial tasks for a new project? To elaborate, imagine the features/stories/goals are laid out for a project. How might one go about organizing those into sane tasks for the first few versions? The scenario I typically have in mind has the features listed as a high-level reference for what the end user-experience should involve. The tasks for constructing such features are then broken down into chunks (such as "create interface for X component"). Such a task is not necessarily "tied" to only that feature and may be useful when building subsequent features. Is breaking features down into small, code-able solutions valid? Or should they be slightly removed from any specific implementation? I do not expect that there is one "right" answer to this question, but I am looking for a fairly pragmatic and unobtrusive approach. As a note, I'm looking for solutions that are independent of any tools or "systems" used for managing the tasks themselves.

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• game engine done, ideas missing

  - by Thoms

  I read at many places how people have this GREAT ideas but are not able to program themselves. I have quite the opposite problem. I have developed game engine, level editor, embedded Lua scripting language, I have even made wrapper for Android and it all works well. But I have no good idea about how to proceed with actual levels; I have no good ideas. The engine itself is very generic and can be used in many game concepts, but I just cannot think of anything useful. Do you have any thoughts on how to proceed? Where should I seek ideas? Who should I ask? I am sorry if this question is a duplicate.

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• Looking software for making an animated cartoon to present a new application/scenario idea [closed]

  - by Skarab

  I have an idea for an application (+usage scenario) and I would like to create an animated cartoon that shows a use case for this application and its novelty. My company is a rather big so I am looking for an interesting way to get people know my idea to get feedback/get a green light to further develop it. Therefore I am looking for an application (free or commercial) that I could use to realize such an animated cartoon. I have posted this quesion before on stackoverflow, but I think this might be a better community to ask such a question.

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• Running WordPress on Windows Server

  A few days ago, I saw someone posted on Twitter a question about running WordPress on Windows Server. Since I had done this for a few sites, I responded with my thoughts and tips. Another suggested that I post those here, and so here I go. WordPress is a blogging/content-management platform that has been around for a while. It has been gaining more in popularity for general purpose content sites over the past year Id say, but is primarily seen as a blogging platform by most. Even though I use Subtext...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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• Newer versions of chromium?

  - by user128712

  I've been wondering why the ubuntu's version of chromium is still on 25 -- from lucid up until raring -- while the current stable version is 28. The only reason I use chromium is to use the web apps integration. PS : I have tried to use the web apps integration on another version of chromium -- not google chrome -- which is 28 then it seems that some features I use was lost while using other version than 25. EDIT: Sorry I forgot to tell you I use the 13.04 version and also the development branch 13.10. My question was : Why does ubuntu doesn't update the package in the repository to the current stable version?

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• May I give a single class multiple responsibilities if only one will ever be reusable?

  - by lnluis

  To the extent that I understand the Single Responsibility Principle, a SINGLE class must only have one responsibility. We use this so that we can reuse other functionalities in other classes and not affect the whole class. My question is: what if the entity has only one purpose that really interacts with the system, and that purpose won't change? Do you have to separate the implementations of your methods into another class and just instantiate those from your entity class? Or to put it another way... Is it ok to break the SRP if you know those functions will not be reusable in the future? Or is it better to assume that we do not know if the functionalities of these methods will be reusable or not, and so just abstract them to other classes?

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• How to solve cyclic dependencies in a visitor pattern

  - by Benjamin Rogge

  When programming at work we now and then face a problem with visitors and module/project dependencies. Say you have a class A in a module X. And there are subclasses B and C in module Y. That means that module Y is dependent on module X. If we want to implement a visitor pattern to the class hierarchy, thus introducing an interface with the handle Operations and an abstract accept method in A, we get a dependency from module Y to module X, which we cannot allow for architectural reasons. What we do is, use a direct comparison of the types (i.e. instanceof, since we program in Java), which is not satisfying. My question(s) would be: Do you encounter this kind of problem in your daily work (or do we make poor architectural choices) and if so, how is your approach to solve this?

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• How are vertex shader outs sent as inputs to the fragment shader?

  - by Jeffrey

  I'm learning some OpenGL 3.2 way of doing things and I think it's quite great, I'm actually understanding more of shaders and non-fixed pipeline in 1 week rather than those 2 years I tried to learn OpenGL fixed pipeline functions. But here's my question: From what I think I've understood the vertex shader is run for each vertexes in the VBO. But the fragments shader is run per each pixel (is that right?) which is a huge number compared to let's say 3 vertexes of a triangle. Now it seems that in the vertex shader the out variables (like colors and stuff) are passed 1 to 1 to the fragment shader. But let's say that I pass to the fragment shader the position of the vertex in the vertex shader. How is all executed? What vertex (A, B or C of the hipothetical triangle) is passed per each fragment and why?

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• What is the benefit of not using Hungarian notation?

  - by user29981

  One of the things I struggle with is not using Hungarian notation. I don't want to have to go to the variable definition just to see what type it is. When a project gets extensive, it's nice to be able to look at a variable prefixed by 'bool' and know that it's looking for true/false instead of a 0/1 value. I also do a lot of work in SQL Server. I prefix my stored procedures with 'sp' and my tables with 'tbl', not to mention all of my variables in the database respectively. I see everywhere that nobody really wants to use Hungarian notation, to the point where they avoid it. My question is, what is the benefit of not using Hungarian notation, and why does the majority of developers avoid it like the plague?

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• La liste de Noël (part. 1) de Developpez : 4 smartphones, 1 PC, des pochettes artisanales et du Bambou

  La liste de Noël de Developpez partie 1 3 smartphones, 1 PC, des pochettes artisanales à prix mini et du Bambou Et oui, déjà Noël. Et à chaque fois la même question : « qu'est-ce que je vais bien pouvoir lui (leur) offrir ? ». Pire ! « Qu'est-ce que je vais bien pouvoir demander ? ». Pour vous aider, Developpez.com vous livre sa liste de cadeaux 2012 dans laquelle vous n'aurez plus qu'à piocher. Première partie : les appareils et ce qui les accompagne. Smarthpones Incontestablement, l'année 2012 a été marquée par la sortie de 3 smartphones de très bonne tenue. Chacun trouvera le bonheur dans le modèle de son choix en fonction de son OS préféré : ...

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• Am I getting paid a reasonable wage for web engineering?

  - by sailtheworld

  I've been doing some research and it looks like most people in my line of work - WEB ENGINEERING/WEB APPLICATION DEVELOPMENT - that get paid hourly, make anywhere from $30-80 an hour for their work. With that said, I have SEVEN years of experience with web development including OOP-PHP, MySQL, jQuery, OOP-JS, interface design, ajax, database architecture, etc. I am also very strong with visual design and workflow - thus, I've made some really high quality interactive interfaces. I also have a lot of experience with Zend Framework, Symfony, Wordpress, Drupal, etc and a really strong portfolio to show for it. Here's the catch: I'm 20 years old, haven't graduated from college yet (I'm doing part time school and ~30 hours a week of web development.) But I've literally been doing web apps since I was 13 years old. So my question is: is $14 an hour a reasonable starting wage for working at a company part time?

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• HTML5 - check if font has loaded

  - by espais

  At present I load my font for my game in with @font-face For instance: @font-face { font-family: 'Orbitron'; src: url('res/orbitron-medium.ttf'); } and then reference it throughout my JS implementation as such: ctx.font = "12pt Orbitron"; where ctx is my 2d context from the canvas. However, I notice a certain lag time while the font is downloaded to the user. Is there a way I can use a default font until it is loaded in? Edit - I'll expand the question, because I hadn't taken the first comment into account. What would the proper method of handling this be in the case that a user has disabled custom fonts?

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• How Does Windows Confirm Wi-Fi Access and Whether Hot Spot Authentication Is Necessary?

  - by Jason Fitzpatrick

  Windows is quite adept at telling you if you have a properly functioning Internet connection, but how exactly does it do so? Digging into how Windows handles the problem offers insight into Windows connectivity messages. Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot Our Geek Trivia App for Windows 8 is Now Available Everywhere

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• How to make a launcher that will first navigate to a folder and then execute a command that resides in normal /usr/bin/

  - by Nirmik

  Okay this Question is basically directed for using GRIVE the linux client for Google Drive Details on how to do it are Here. The thing is that,evrytime i want the folder to sync,I have to navigate to the google drive folder and then execute the grive commnd. I want to make it simple..I want to make a launcher(I know how to make a *.desktop file). But in a .desktop file you always give path to executable file(generally .sh). Here,there is no script in the Grive folder.The app is as usual in /usr/bin/grive Now how do I make the launcher to first navigate to the grive folder and then execut the grive command.. Thanx :)

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• How to report abuse to website hosting company (GoDaddy)

  - by lgratian

  I'm not sure if this is the right place to ask such a question... Let's say that a website posted a picture of me, without my consent, and I want to be removed (it's something private, could compromise my career if it's seen by someone that shouldn't). I sent them an email asking nicely that they should remove it, but they didn't respond and the picture is still there. Using 'Whois' I found that the website is hosted by GoDaddy. Is there a way (an email address, for ex.) to report to GoDaddy that one of the sites they're hosting does something illegal and to force them to remove the photo? I searched the site and found nothing about such a thing. Thnaks in advance!

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• What Would You Consider Best Practice Workflow Tools For Web Application (PHP) Development?

  - by Zenph

  I'm really hoping somebody with more experience can edit the question as per my examples of answers: • using version control • test driven development • debugging code (xdebug for php) • use of UML diagrams • use of OOP for maintainable, reusable code • use of frameworks (like Zend Framework for php) for rapid application development Anything else or an elaboration of what I mentioned above? Basically, I'm in the middle of forming a team of developers (I'm a developer myself) and I'd like some advice on how professional programmers/designers etc should work together and what standards/paradigms they should use. Also, if anybody has any books or links on the subject I'd welcome that! I did find this which I guess satisfies what I'm looking for, or at least part thereof: http://www.ibm.com/developerworks/websphere/library/techarticles/0306_perks/perks2.html

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• ISO Live Session from an External Hard Drive?

  - by amemus

  Is it possible to use an external hard drive to start a live Ubuntu session? Is having an ISO file as the whole content of the first partition of the device enough? Thank you for reading...! EDIT upon reading the first comment to my original question: If I remember correctly, I COULD run a live session of Oneiric Ocelot somehow. It was not from a CD because I failed to burn one, so it must have been from an ISO file. Still very very confused....

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• How do these hotshot developers keep changing their technology base ?

  - by pankajdoharey

  Yesterday I was watching a lynda.com iphone development video and this developer started telling about how he has worked on 17 different languages from the days of mainframes in assembly/Cobol to now on iPhone Objective-C. My question is how do these developers keep shifting to new technology, without fearing the loss of experience they already have about a particular technology. I am trying to shift to Java from PHP and market considers this as non-relevant experience. How do these guys do it without losing the pay and not being considered a fresher in a particular technology.

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• Xubuntu: how do I automatically mount external NTFS drive with writes allowed?

  - by user74372

  i would have thought mine was such a common question that there would be a simple solution already built in to xubuntu - but there isnt. i have 2 separate external hard disks and connect them to a usb port at different times - i would like them to be automatically mounted as read/write, but apparently the designers of gnome-volume-manager decided that shouldnt be possible and they are mounted as read-only in fact, i can write new files to them, but cannot then delete the new files i just wrote! is there a workaround? i read somewhere that etc/fstab doesn't apply to removable media, which are mounted by gnome-volume-manager and therefore cannot be unmounted by a user

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