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  • Development Approach: User Interface In or Domain Model Out?

    - by Berin Loritsch
    While I've never delivered anything using Smalltalk, my brief time playing with it has definitely left its mark. The only way to describe the experience is MVC the way it was meant to be. Essentially, all the heavy lifting for your application is done in the business objects (or domain model if you are so inclined). The standard controls are bound to the business objects in some way. For example, a text box is mapped to an object's field (the field itself is an object so it's easy to do). A button would mapped to a method. This is all done with a very simple and natural API. We don't have to think about binding objects, etc. It just works. Yet, in many newer languages and APIs you are forced to think from the outside in. First with C++ and MFC, and now with C# and WPF, Microsoft has gotten it's developer world hooked on GUI builders where you build your application by implementing event handlers. Java Swing development isn't so different, only you are writing the code to instantiate the controls on the form yourself. For some projects, there may never even be a domain model--just event handlers. I've been in and around this model for most of my carreer. Each way forces you to think differently. With the Smalltalk approach, your domain is smart while your GUI is dumb. With the default VisualStudio approach, your GUI is smart while your domain model (if it exists) is rather anemic. Many developers that I work with see value in the Smalltalk approach, and try to shoehorn that approach into the VisualStudio environment. WPF has some dynamic binding features that makes it possible; but there are limitations. Inevitably some code that belongs in the domain model ends up in the GUI classes. So, which way do you design/develop your code? Why? GUI first. User interaction is paramount. Domain first. I need to make sure the system is correct before we put a UI on it. There's pros and cons for either approach. Domain model fits in there with crystal cathedrals and pie in the sky. GUI fits in there with quick and dirty (sometimes really dirty). And for an added bonus: How do you make sure the code is maintainable?

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  • If I project a sphere in 3D will it be a circle?

    - by yuumei
    Assuming I have infinite vertices to represent the sphere, if I project the sphere from any position/scale in 3D to 2D, will it be a circle? I know it will not be a circle on the screen, because of scaling and different resolutions. But do field of view and aspect ratio effect the results? Edit: Sorry yes, I am talking about perspective projection. Seems the answer is no then, perspective will distort the sphere. Thanks!

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  • Build Sales As an Exhibitor at a Marketing Expo

    A marketing expo is the ideal opportunity to showcase products or services for groups that are most interested in a certain company's field of expertise. Most exhibitor spaces are relatively inexpensive compared to traditional advertising costs. It is easy to recover the booth rental and supply overhead with just a few good sales or networking connections.

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  • Is knowing .NET only enough for a successful career in IT industry? [closed]

    - by rsapru
    Possible Duplicate: Is it better to specialize in a single field I like, or expand into other fields to broaden my horizons? Recently, I don’t know from where I got a thought in my mind that, “is knowing .NET development environment enough for a successful career in IT industry”. Should I be learning more languages too or will .NET suffice me for next 10-15 years. By successful career I mean earning decent living and having good growth opportunities.

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  • Is my work on a developers test being taken advantage of?

    - by CodeWarrior
    I am looking for a job and have applied to a number of positions. One of them responded, I had a pretty lengthy phone interview (perhaps an hour +) and they then set me up with the developers test. I was told that this test is estimated to take between 6 and 8 hours and that, provided it met with their approval, I could be paid for my work on it. That gave me some pause, but I endeavored. The dev test took place on a VM accessed via RDP. The task was to implement a search page in a web project that requests data from the server, displays it on the screen in a table, has a pretty complicated search filtering scheme (there are about 15 statuses and when sending the search to the server you can search by these statuses) in addition to the string/field search. They want some SVG icons to change color on certain data values, they want some data to be represented differently than how it is in the database, etc. Loooong story short, this took one heck of a lot longer than 6-8 hours. Much of it was due to the very poor VM that I was running on (Visual Studio 2013 took 10 minutes to load, and another 15 minutes to open the 3 GB ginormous solution). After completing, I was told to commit my changes to source control... Hmm, OK. I get an email back that they thought that the SVGs could have their color changed differently, they found a bug in this edge-case, there was an occasional problem with this other thing that I never experienced, etc. So I am 13-14 hours into this thing now and I have to do bug fixes. I do them, and they come back with some more. This is all apparently going into a production application. I noticed some anomalies in the code that was already in there where it looked like other people had coded all of one functionality and not anything else that I could find. Am I just being used for cheap labor? Even if they pay me the promised 50 dollars and hour for 6 hours, I have committed like 18 hours to this thing now. If I bug fix all of the stuff they keep coming up with, I will have worked at least 16 hours for free. I have taken a number of dev tests. I have never taken one where I worked on code that was destined for production. I have never taken one where I implemented a feature that was in the pipeline for development (it was planned for, and I implemented it through the course of the test). And I have never taken one that took 4 rounds and a total of 20+ hours. I get the impression that they are using their dev test to field some of the functionality, that they don't have time for in their normal team, on the cheap. Also, I wouldn't mind a 'devtest' tag.

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  • SEO and Ad Networks Go Hand in Hand - How?

    Managing the presence of companies on the web is a challenging task. It is important to make use of experts who have hands on experience in the field of web marketing. You can't build a successful business with out employing wise strategies.

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  • Kill all currently running cron jobs

    - by Adelphia
    For some reason my cron job scripts aren't exiting cleanly and they're backing up my server. There are currently a couple hundred processes running for one of my users. I can use the following command to kill all processes by that user, but how can I simplify this to kill only crons? pgrep -U username | while read id ; do kill -6 $id ; done It would be dangerous to run the above command as is, correct? Wouldn't that kill mysql and other important things?

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  • Link Building - A Boost For Internet Marketing

    Internet marketing is a very wide field and there are many different things which the online marketers try in order to get more traffic to their website. Some of the most used and trusted techniques for internet marketing are directory submission, article submission and social bookmarking. All of these methods increase the back links. This attaches importance to the link building for internet marketing.

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  • Hiring an SEO Company

    Marketing your site is never an easy task, albeit achieving supremacy in the search engine rankings is possible but it requires expertise on the field of internet marketing. In order to generate more visitors and eventually convert these visits to sales, hire a reliable SEO company to do all the marketing efforts for your website. SEO is search engine optimization and is referred to individuals or a company that caters to your marketing needs in the online arena.

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  • How to Find SEO Jobs

    If you've spent any time on the Internet (and these days, who doesn't), you're no doubt familiar with Internet search engines such as Google, Yahoo and Bing. But who determines which sites come up first when you search for a particular subject? That ranking is based on search engine optimization (SEO) and you can be a part of this lucrative field if you know how to find SEO jobs.

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  • Things You Need in Building Websites

    Web site development is a growing business now-a-days and many of the people from all over the world are going to acquire knowledge in this avenue in order to promote, marketing and earning. Web site development needs certain basic skill and knowledge as well as advance knowledge in order to get high expertise in this field.

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  • Access to certain files but not others

    - by ADW
    Hoping someone can help me as I have, thus far, been unable to solve the issue. I am running a media center utilizing Ubuntu 12.04. I was initially successful accessing media files from the desktop running Ubuntu via my Windows 7 laptop and Roku device. I started backing up a new batch of DVD's I had (into MKV files, like everything else in my media folders) and noticed I cannot access the new files from either the Roku or the laptop. I have not changed any settings in the media folder and verified the shared permissions. The parent folder (Media) is shared (with permission flow-down) while the subfolders (Movies, TV Shows, Music) are not. I have changed the permissions on this to include shared when the access problem arose but with no success. I can only access the original files uploaded an not new files added. Any suggestions??? Thanks in advance for any and all help.

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  • Promising Future For Internet Marketing Company

    Prospects for Internet marketing companies in the field of e-commerce are bright these days and the trend is likely to continue. It does not mean that anyone and everyone starting an Internet marketing company will have the same amount of success. Success in e-commerce depends on a number of factors.

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  • How to Obtain the Best SEO Services

    The present IT field is full of companies that boast of offering best SEO services at an affordable rate. Some even notify that they provide cost effective SEO services without compromising on the quality. Though a majority of the websites try to negotiate on the price, the services are still worth to obtain by paying the quoted price. The aspect of choosing SEO services that provide best quality is an uphill task. One of the factors that favour this aspect is thorough research on the Internet.

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  • Why my backup to USB Drive is too slow?

    - by Jonas
    I have tried several backup solutions for my data and none of them was good enough. I basically want to make a copy of my files to an attached USB Drive from time to time. I don't mind starting my backups manually, since the USB Drive is not always connected. My problem is that my data contains a lot of files (a huge amount), so backing up takes forever (more than 20 hours). Using "rsync" an other similar solutions is not working because the I/O needed to check the file for changes takes longer than the time to actually copy it. Any suggestions?

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  • Generating Debt Leads by Using Mobile Marketing

    If you are a debt leads generation company and you're using these methods of generating leads, you should know that the least amount of fields for the consumer to fill out, the higher the lead conversion. Every field will reduce the change of the user clicking on the submit button.

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  • Register now to a complementary Oracle Health Sciences 3-day workshop on Enterprise Healthcare Analytics training in Dallas, US, Nov 12-14, 2013!

    - by Roxana Babiciu
    Join Oracle Health Sciences for an informative overview for Sales / Business Development and Implementation team members on Oracle Enterprise Healthcare Analytics (EHA). You’ll gain an understanding of the Oracle EHA product strategy, garner a platform overview and hear customer success stories that will enable you in the field. Be ready for technical education and training spanning three days of deep expertise sharing.

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  • Local Search Marketing Services

    As a small business owner, you are most likely an expert in your field. You know your trade, and have found offline advertising techniques that work for your business. But is there another way to gain leads, attract new customers and build your reputation to the masses?

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  • A Tale of Search Engine Optimisation

    As such, search engine optimization becomes the part of the story where websites are literally 'optimized' so that they have the best interface, content, web pages and most traffic with a lot of links increasing their page rankings throughout the web. This is a field that is called 'internet marketing'.

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  • calculating player experience

    - by user1765862
    very simple question, I'm trying to learn advanced principles of .net and c# and I'm in the middle of creating some simple manager game. Now I should implement some experience for players. I was thinking to implement some kind of enumerated values like this private enum ExperienceValues { FriendlyMatch = 0.1, Training = 0.15, LeagueMatch = 0.6, CupMatch = 0.85, Qualification = 1.4 } And to calculate experience by the time user spend on the field 90min * 0.6 = 54 Is this approach ok ? How can I abstract experience calculation for common sports (team sport). Thanks

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  • Why Are Authority Sites Important?

    You can overcome mediocrity once people consider you to be an authority in a certain field or specialty. In the world of the internet, authority is synonymous with excellence and quality in a chosen endeavor. These are websites that have gained the trust and confidence of people from every corner of the globe because of the quality of the service it offers.

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