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  How Google Tests Software - Part Three

Lots of questions in the comments to the last two posts. I am not ignoring them. Hopefully many of them will be answered here and in following posts. I am just getting started on this topic.At Google, quality is not equal to test. Yes I am sure that is true elsewhere too. “Quality cannot be tested in” is so cliché it has to be true. From automobiles to software if it isn’t built right in the first place then it is never going to be right. Ask any car company that has ever h...

   Google,Software,Testing,Quality,Fidelity     2011-03-22 14:31:00

  Interaction between JavaScript and Frameset

ou want to change more than one frame at a time? OK, well here is how to do make the trick work for you! The first thing you will need is a frameset to get you started. Again, I will use a frameset with two frames. Here is the code for the frameset page: <HTML> <HEAD> <TITLE>Frames Example 5</TITLE> </HEAD> <FRAMESET cols=\"20%,80%\"> <FRAME SRC=\"page1.htm\" name=\"left_frame\"> <FRAME SRC=\"page2.htm\" name=\"right_frame\"> </FRAMESET> <...

   interaction,javascript,html,frameset,fra     2011-03-22 12:50:47

  What, exactly, is a Product Manager?

I often get asked what a product manager is. What do they do? Where do they come from? Why do they like sharpies so much?In his book Inspired, Marty Cagan describes the job of the product manager as “to discover a product that is valuable, usable and feasible”. Similarly, I’ve always defined product management as the intersection between business, technology and user experience (hint – only a product manager would define themselves in a venn diagram). A good produc...

   Product manager,Definition,Features,Career     2011-10-12 11:42:15

  Why Aren't Other SOPA Supporters Being Punished Like GoDaddy?

Even though it recanted (somewhat unconvincingly) its support of the controversial Stop Online Piracy Act (SOPA), domain registrar GoDaddy continues to lose thousands of domains as an online campaign to punish GoDaddy is proving highly effective. The boycott campaign began on reddit on December 22. A day later GoDaddy announced its withdrawal of support for the House legislation it actually helped craft. And still GoDaddy has lost more than 70,000 domains in less than a week, with the prospe...

   GoDaddy,SOPA,boycott,Reason,Punishment     2011-12-27 09:38:27

  The war with spam comment

Spam comments are annoying and notorious. They are either malicious data from hackers to exploit the loopholes of the site or advertisements posted by robots. These kinds of comments have their own features and patterns, if we are careful enough, we can find ways to block most of them although it's not so easy. To block the comment with malicious executable codes such as JavaScript, we should remember one rule : never trust user input. So wherever there are user inputs, we need to check the vali...

   Spam comment,Block,Filter     2013-11-29 20:29:43

  Find the kth smallest number in an array

This is an classical question, the general solution to this question is first using sorting algorithm to sort the array, then get the kth number in the array, the complexity is O(nlogn), we can also use selective sort or head sort to, the complexity of selective sort is O(kn) and heap sort is O(nlogk). The better solution is to use quick sort to find the kth smallest number, the complexity is O(n), the worst case cost is O(n^2). But today we introduce one more solution which has the worst case c...

   Sort, Quick sort, Search,Smallest     2013-01-09 06:20:54

  Save QWidget as image

Qt library is an excellent GUI library for C++ programmers developed by Nokia and now is an open source project. Often, we may use QPainter to draw strings, lines or images on a QWidget. We can override the QWidget's paintEvent() method when we want to use QPianter object to draw something on a QWidget. If we want to save the items drawn on QWidget as image for later reference, what can we do? We can save a QWidget as an image. Here is the code for achieving this: QPixmap pixmap(this->size())...

   Qt,C++,QWidget,Image     2012-08-19 12:01:18

  Facebook : App Center is more suitable for developers

Facebook recently announced that they will release their own app store named App Center. It will be released in a few weeks. At the same time, Facebook also released the introduction page of the App Center, it introduces to developers the process of app submission and the standards of app approval.Facebook allows developer to provide charged apps via App Center. Since it has over 900 million active users globally, so many developers are willing to develop apps on this platform. Facebook will dec...

   Facebook,App Center,Introduction     2012-05-13 01:03:56

  HTML5 and Accessibility

Accessibility for people with disabilities is a legal responsibility in many countries. It's also the right thing to do, and one of the characteristics distinguishing professional developers from the WWWs: WYSIWYG-wielding wannabes. But for many, accessibility has been a somewhat black art, requiring adding extra stuff to your code like alt text, table summaries, ARIA information that can be difficult to test by developers who are not assistive technology users themselves.The arrival of HTML5 ha...

   HTML5,Accessibility,Video,Music,Canvas     2011-08-19 08:13:44

  Game Development Essentials #1 - Don’t use inheritance for your game objects

I recently released my first game, X Fleet, available now in Android Market. It’s a fast paced space shooter / rpg riddled with awesomeness and you should get it now. The reason you should avoid hierarchies/inheritance is your objects will be far too varied and complicated in form to be accurately represented as such. More on this below.  The alternative is a component model. This is very basic. Instead of having everything inheriting (e.g. Object -> MovableObject -> Animat...

   Game design,OOP,Inheritence,Game object     2012-02-07 06:26:40

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