Search Results

Search found 12829 results on 514 pages for 'hard'.

Page 382/514 | < Previous Page | 378 379 380 381 382 383 384 385 386 387 388 389  | Next Page >

• Anticipating JavaOne 2012 – Number 17!

  - by Janice J. Heiss

  As I write this, JavaOne 2012 (September 30-October 4 in San Francisco, CA) is just over a week away -- the seventeenth JavaOne! I’ll resist the impulse to travel in memory back to the early days of JavaOne. But I will say that JavaOne is a little like your birthday or New Year’s in that it invites reflection, evaluation, and comparison. It’s a time when we take the temperature of Java and assess the world of information technology generally. At JavaOne, insight and information flow amongst Java developers like no other time of the year.This year, the status of Java seems more secure in the eyes of most Java developers who agree that Oracle is doing an acceptable job of stewarding the platform, and while the story is still in progress, few doubt that Oracle is engaging strongly with the Java community and wants to see Java thrive. From my perspective, the biggest news about Java is the growth of some 250 alternative languages for the JVM – from Groovy to Jython to JRuby to Scala to Clojure and on and on – offering both new opportunities and challenges. The JVM has proven itself to be unusually flexible, resulting in an embarrassment of riches in which, more and more, developers are challenged to find ways to optimally mix together several different languages on projects.    To the matter at hand -- I can say with confidence that Oracle is working hard to make each JavaOne better than the last – more interesting, more stimulating, more networking, and more fun! A great deal of thought and attention is being devoted to the task. To free up time for the 475 technical sessions/Birds of feather/Hands-on-Labs slots, the Java Strategy, Partner, and Technical keynotes will be held on Sunday September 30, beginning at 4:00 p.m.   Let’s not forget Java Embedded@JavaOne which is being held Wednesday, Oct. 3rd and Thursday, Oct. 4th at the Hotel Nikko. It will provide business decision makers, technical leaders, and ecosystem partners important information about Java Embedded technologies and new business opportunities.   This year's JavaOne theme is “Make the Future Java”. So come to JavaOne and make your future better by:--Choosing from 475 sessions given by the experts to improve your working knowledge and coding expertise --Networking with fellow developers in both casual and formal settings--Enjoying world-class entertainment--Delighting in one of the world’s great cities (my home town) Hope to see you there!

  Read the article

• The Whole Enchilada — Fusion Supply Chain in the Cloud

  - by Kathryn Perry

  A guest post by Tyra Crockett, Senior Manager at Oracle No other vendor can offer everything in the cloud the way Oracle can. You can get HR from Workday and CRM from Salesforce, but you can get the whole enchilada—HCM, CRM and ERP—all from Oracle on one platform. If you’re thinking about using Oracle's Cloud Services to implement the newest Oracle Fusion Supply Chain applications, this post is for you. Point #1: The Oracle Cloud Applications Services portfolio includes ERP cloud services which are flexible and can adapt to fill your supply chain needs. For example, you might be opening a small distribution facility in California, but don’t have the time or IT resources to warrant a full scale supply chain implementation. You can use Oracle’s Cloud to implement the Oracle Fusion Supply Chain applications you need without an increase in IT staff or hardware. Then as your business grows, you can add more features and applications to your cloud.   Point #2: Whether you’re implementing a slice of the Fusion Procurement pie, or the entire ERP portfolio, you want to be up and running fast with low upfront costs and investment risks. That’s where you can trust a world-class technology organization like Oracle. Your SaaS subscription-based deployment model will take away the headaches associated with determining your software costs. You also will be able to eliminate expensive customizations and configure your deployment as you like, saving you time and money during the initial stages and upon upgrade. Point #3: Another great benefit of operating your Oracle Fusion Supply Chain in the cloud is the opportunity to standardize your processes across your entire supply chain. You can institute processes in San Francisco and be confident they will be followed in Mexico City and Hong Kong. Point #4: If data security is a concern – and it is for most of us – Oracle-managed cloud services give you the comfort of knowing that your data will always be there when you need it. You will not have to manage the IT services associated with patching and upgrade. They will be taken care of automatically. This enables you to focus on what you do best: managing your business. Point #5: Cloud services aren’t an either/or proposition. You might have very good business reasons for choosing a hybrid model -- running some applications in the cloud and others on premise. That allows you to leverage your own IT department, when and where you need to, and shift focus when necessary. I urge you to take a hard look at the Oracle Fusion Supply Chain applications running in the cloud. These solutions running alongside your existing legacy systems can solve your toughest business challenges as you move forward in the 21st century.

  Read the article

• How to Write an E-Book

  A few days ago my attention was drawn to a tweet spat between Karl Seguin and Scott Hanselman around the relaunch of ASP.NET and the title element in HTML. Tempest in a teapot of course, but worthwhile as I did some googling on Karl and found his blog at codebetter.com. From there it was a short jump to his free e-book, The Foundations of Programming. This short book is distinguished by its orientation, opinionated, its tone, mentoring and its honesty, which is refreshing. In Foundations, Karl covers what he considers the basics of programming and good design, including test driven development, dependency injection and domain driven design. Karl is opinionated, as the topics suggest, and doesnt bother to pretend that he doesnt think what hes suggesting is the better way, not just another way. He is aligned with ALT.NET, and gives an excellent overview of what that means; an overview more enlightening than the ALT.NET site. ALT.NET has its critics, but presenting a strong opinion grabbed my attention as a reader. It is a short walk from opinionated to hectoring,  but Karl held my attention without insulting me. He takes the time to explain, with examples, from the ground up, the problems that test driven development and dependency injection solve. So for dependency injection he builds it up from no DI, to a hand crafted approach, to a full fledged DI framework. This approach is more persuasive than just proscriptive and engaged me as the reader to follow along with his train of thought. Foundations is not as pedantic as I am making it sound. The final ingredient in Karls mix is honesty. He acknowledges that sometimes unit testing does cost more up front and take more time. He admits that sometimes he designs something a certain way just to be testable. He also warns that focusing too much on DI and loose coupling can lead to the poor design you are trying to avoid. These points add depth to his argument as I could tell hes speaking from experience, with some hard won lessons. I enjoyed The Foundations of Programming. When I was done with it, I was amazed how much I got a lot out of its 80 some pages. It is a rarity to come across something worthwhile that is longer then a tweet, but shorter than a tome these days. Well done Karl.   -- Relevant Links -- The now titled and newly relaunched page in question: http://www.asp.net/ The pleasantly confusing ALT.NET homepage: http://altdotnet.org/ A longer review, with details, chapter listings and all that important stuff: http://accidentaltechnologist.com/book-reviews/book-review-foundations-of-programming-by-karl-seguin/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.

  Read the article

• Playing NSF music in FMOD.net

  - by Tesserex

  So, as the title says, I want to be able to play NSF files using FMOD, because my project already uses FMOD and I'd rather not replace it. This will involve figuring out how existing players and emulators work and porting it. I haven't yet found an existing player that uses FMOD. My starting point is the MyNes source from http://sourceforge.net/projects/mynes/. There are two big steps between here and what I'm looking for. MyNes plays from a ROM, not NSF. So, I have to rip out the APU and get it to play NSF files. The MyNes APU uses SlimDX, so I have to convert that to FMOD.NET. I am really stuck about how to go about either of these, because I'm not that familiar with audio formats and it's hard finding resources online. So here are a few questions: From what I can tell from the NSF spec at http://kevtris.org/nes/nsfspec.txt, it's just contains the relevant memory section of the ROM, plus the header. If anyone can verify or correct this that would be great. The emulator APU uses data from the rest of the emulator to play, including things like cycle counts. I'm not sure what replaces this in a standalone player. Can't I just load all the music data at once into a stream and play it? Joining #1 and #2, does the header data from the NSF substitute for some of the ROM data in the emulator code? Using FMOD, will I be following the usercreatedsound example for loading a stream? And does this format count as PCM? Specifically MyNes says PCM8. Any tips on loading / playing the stream in FMOD are appreciated. As an aside, I don't really understand the loading / playing sections of the spec I linked at all. It seems to apply to 6502 systems / emulators only and not to my situation. I know it's a long shot for anyone here to have enough experience in this area to help, but anything you can provide is definitely appreciated. A link to an existing .NET library that does this would be even better, but I don't believe one exists.

  Read the article

• How to handle "circular dependency" in dependency injection

  - by Roel

  The title says "Circular Dependency", but it is not the correct wording, because to me the design seems solid. However, consider the following scenario, where the blue parts are given from external partner, and orange is my own implementation. Also assume there is more then one ConcreteMain, but I want to use a specific one. (In reality, each class has some more dependencies, but I tried to simplify it here) I would like to instanciate all of this with Depency Injection (Unity), but I obviously get a StackOverflowException on the following code, because Runner tries to instantiate ConcreteMain, and ConcreteMain needs a Runner. IUnityContainer ioc = new UnityContainer(); ioc.RegisterType<IMain, ConcreteMain>() .RegisterType<IMainCallback, Runner>(); var runner = ioc.Resolve<Runner>(); How can I avouid this? Is there any way to structure this so that I can use it with DI? The scenario I'm doing now is setting everything up manually, but that puts a hard dependency on ConcreteMain in the class which instantiates it. This is what i'm trying to avoid (with Unity registrations in configuration). All source code below (very simplified example!); public class Program { public static void Main(string[] args) { IUnityContainer ioc = new UnityContainer(); ioc.RegisterType<IMain, ConcreteMain>() .RegisterType<IMainCallback, Runner>(); var runner = ioc.Resolve<Runner>(); Console.WriteLine("invoking runner..."); runner.DoSomethingAwesome(); Console.ReadLine(); } } public class Runner : IMainCallback { private readonly IMain mainServer; public Runner(IMain mainServer) { this.mainServer = mainServer; } public void DoSomethingAwesome() { Console.WriteLine("trying to do something awesome"); mainServer.DoSomething(); } public void SomethingIsDone(object something) { Console.WriteLine("hey look, something is finally done."); } } public interface IMain { void DoSomething(); } public interface IMainCallback { void SomethingIsDone(object something); } public abstract class AbstractMain : IMain { protected readonly IMainCallback callback; protected AbstractMain(IMainCallback callback) { this.callback = callback; } public abstract void DoSomething(); } public class ConcreteMain : AbstractMain { public ConcreteMain(IMainCallback callback) : base(callback){} public override void DoSomething() { Console.WriteLine("starting to do something..."); var task = Task.Factory.StartNew(() =>{ Thread.Sleep(5000);/*very long running task*/ }); task.ContinueWith(t => callback.SomethingIsDone(true)); } }

  Read the article

• Cutting Paper through Visualization and Collaboration

  - by [email protected]

  It's hard not to hear about "Going Green" these days. Many are working to be more environmentally conscious in their personal lives, and this has extended to the corporate world as well. I know I'm always looking for new ways. Environmental responsibility is important at Oracle too, and we have an entire section of our website dedicated to our solutions around the Eco-Enterprise. You can check it out here: http://www.oracle.com/green/index.html Perhaps the biggest and most obvious challenge in the world of business is the fact that we use so much paper. There are many good reasons why we print today too. For example: Printing off a document, spreadsheet, or CAD design that will be reviewed and marked up while on a plane Having a printout of a facility when a field engineer performs on-site maintenance During a multi-party design review where a number of people will review a drawing in a meeting room, scribbling onto a large scale drawing print to provide their collaborative comments These are just a few potential use cases, and they're valid ones. However, there's a way in which you can turn these paper processes into digital ones. AutoVue allows you to view, mark-up, and collaborate on all the data you would print. Indeed, this is the core of what AutoVue does. So if we take the examples above, we could address each as follows: Allow you to view the document, spreadsheet, or CAD drawing in AutoVue on your laptop. Even if you originally had this data vaulted in some time of system of record (like an ECM solution) and view your data from there, AutoVue allows you to "Work Offline" and take the documents you need to review on your laptop. From there, the many annotation tools in AutoVue will give you what you need to comment upon the documents that you are reviewing. The challenge with the mobile workforce is always access to information. People who perform maintenance and repair operations often are in locations with little to no Internet connectivity. However, technology is coming to these people in the form of laptops, tablet PCs, and other portable devices too. AutoVue can address situations with limited bandwidth through our streaming technology for viewing, meaning that the most up to date information can be pulled up from the central server - without the need for large data transfer. When there is no connectivity at all, the "Work Offline" option will handle this. For a design review session, the Real-Time Collaboration capabilities of AutoVue will let all the participants view the same document in a synchronized view, allowing each person to be able to mark-up the document at the same time. Since this is done in a web-based manner, not only is it not necessary to print the document, but you benefit by reducing the travel needed for these sessions. Not only are trees spared, but jet fuel as well. There are many steps involved with "Going Green", but each step is a necessary one. What we do today will directly influence our future generations, and we're looking to help.

  Read the article

• Chuck Norris Be Thy Name

  - by Robz / Fervent Coder

  Chuck Norris doesn’t program with a keyboard. He stares the computer down until it does what he wants. All things need a name. We’ve tossed around a bunch of names for the framework of tools we’ve been working on, but one we kept coming back to was Chuck Norris. Why did we choose Chuck Norris? Well Chuck Norris sort of chose us. Everything we talked about, the name kept drawing us closer to it. We couldn’t escape Chuck Norris, no matter how hard we tried. So we gave in. Chuck Norris can divide by zero. What is the Chuck Norris Framework? @drusellers and I have been working on a variety of tools: WarmuP - http://github.com/chucknorris/warmup (Template your entire project/solution and create projects ready to code - From Zero to a Solution with everything in seconds. Your templates, your choices.) UppercuT - http://projectuppercut.org (Build with Conventions - Professional Builds in Moments, Not Days!) | Code also at http://github.com/chucknorris/uppercut DropkicK - http://github.com/chucknorris/dropkick (Deploy Fluently) RoundhousE - http://projectroundhouse.org (Professional Database Management with Versioning) | Code also at http://github.com/chucknorris/roundhouse SidePOP - http://sidepop.googlecode.com (Does your application need to check email?) HeadlocK - http://github.com/chucknorris/headlock (Hash a directory so you can later know if anything has changed) Others – still in concept or vaporware People ask why we choose such violent names for each tool of our framework? At first it was about whipping your code into shape, but after awhile the naming became, “How can we relate this to Chuck Norris?” People also ask why we uppercase the last letter of each name. Well, that’s more about making you ask questions…but there are a few reasons for it. Project managers never ask Chuck Norris for estimations…ever. The class object inherits from Chuck Norris Chuck Norris doesn’t need garbage collection because he doesn’t call .Dispose(), he calls .DropKick() So what are you waiting for? Join the Google group today, download and play with the tools. And lastly, welcome to Chuck Norris. Or should I say Chuck Norris welcomes you…

  Read the article

• Finally, I have my HP 6910p laptop running with 8Gb RAM

  - by Liam Westley

  Today, I received two Corsair Value Select 4Gb DDR SO-DIMMs (from overclock.co.uk) for my aging HP 6910p to give it the extra lease of life to keep it going until the end of 2010.  And here is the proof that Windows 7 64-bit happily sees all 8Gb, There are no 4Gb modules are officially supported for the HP 6910p (they didn’t exist when it was first build).  I was taking a bit of a gamble, and relying on the UK distance selling regulations which meant that even if they didn’t work I’d be able to send them back, getting a full refund and only paying for the return postage. I’d read Keith Comb’s blog back in 2008, (http://blogs.technet.com/b/keithcombs/archive/2008/07/05/loading-a-hp-6910p-with-8gb-of-ram.aspx) where he mentioned ‘trying’ out 4Gb samples of SO-DIMMs in a HP 6910p laptop, but there still appears to be no mentions of running this configuration in any other blog. Seeing how the 8Gb of memory is used is made easier with the new Resource Monitor available in Windows 7.  With two copies of Visual Studio 2008, Outlook, Firefox (with 30+ tabs), TweetDeck (an infamous memory hog) and VMWare workstation running a virtual machine allocated with 2Gb of memory, you might have no ‘free’ memory remaining, but the standby memory is an awesome 2.4Gb, and once the VM is up and running the Hard Faults/sec hovers around zero,   It’s the page fault figure which really counts, because reducing that value means that you are preventing the Windows 7 system drive from being used for virtual memory paging operations.  Even after only a few hours of use it’s noticeable that disc access has been reduced and applications feel more responsive and ‘snappy’.  I did consider the option of purchasing an SSD to replace the main drive, rather than go for 8Gb of RAM, but I think I’ve probably made the correct decision. Given my hobby topic of virtualisation, I take the view that you can never have too much memory.   It was also a decision made easier by the price differential between 8Gb of RAM compared to a decent size SSD.  In the 18 months since Keith Comb tested the first 4Gb SO-DIMMS they have plummeted in price, at just under £100 per 4Gb, they are around a fifth of the price when launched. So if you ever wondered if a HP 6910p can handle 8Gb, now you know.

  Read the article

• Finally home - and something fully off topic

  - by Mike Dietrich

  Arrived at Munich Pasing last night at 0:50am ... finally :-) On Sunday I've left the Dylan Hotel in Dublin (thanks to the staff there as well: you were REALLY helpful!!) around 7:30pm to go to the port - and came home on Tuesday morning 1:15am. So all together 29:45hrs door-to-door - not bad for nearly 2000km just relying on public transport. And could have been faster if there were seats in ealier TGV's left. But I don't complain at all ;-) Just checked the website of Dublin Airport - it says currently: 17.00pm: Latest on flight disruptions at Dublin Airport The IAA have advised us that based on the latest Volcanic Ash Advisory Centre London Dublin Airport will remain closed for all inbound and outbound commercial flights until 20.00hours. This effectively means that no flights will land or take off at Dublin Airport until then. A further update will be posted this afternoon. When traveling I have always my iPod with me. It has gotten a bit old now (I think I've bought it 3 years ago in November 2007) but it has a 160GB hard disk in it so it fits most of my music collection (not the entire collection anymore as I'm currently re-riping everything to Apple Lossless because at least for my ears it makes a big difference - but I listen to good ol' vinyl as well ...and I don't download compressed music ;-) ). The battery of my little travel companion is still good for more than 20 hours consistent music playback - and there was a band from Texas being in my ears most of the whole journey called Midlake. I haven't heard of them before until I asked a lady at a Munich store some few weeks ago what she's playing on the speakers in the shop. She was amazed and came back with the CD cover but I hesitated to buy it as I always want to listen the tunes before - and at this day I had no time left to do so. But in Dublin I had a bit of spare time on Saturday and I always enter record stores - and the Tower Records was the sort of store I really enjoy and so I've spent there nearly two hours - leaving with 3 Midlake CDs in my bag. So if you are interested just listen those tunes which may remind some people on Fleetwood Mac: As I said in the title, fully off topic ;-)

  Read the article

• SQL SERVER – SSMS 2012 Reset Keyboard Shortcuts to Default

  - by pinaldave

  As a technologist, I love my laptop very much and I do not lend it to anyone as I am usually worried that my settings would be messed up when I get it back from its borrower. Honestly, I love how I have set up my laptop and I enjoy the settings and programs I have placed on my computer. If someone changes things there – it will surely be annoying for me. Recently at one of the conferences I was attending in, a small accident happened – one of the speaker’s hard drives failed. The owner immediately panicked due to this and had no clue what to do. I suggested that he may not be able to show the demos but can still show a few things with the product. He accepted my suggestion and finished the presentation. Good thing everybody looked satisfied. Little did I know that a small accident was waiting for me later that day. When I opened my SQL Server Denali, all my shortcuts were totally out of order. When I hit F5, instead of executing query, it was opening up some debugging screen for me. I was very much annoyed so I decided to surf the Internet for me to know how I could reset it to SQL Server 2012 default shortcut. There were so many different advices which further confused me. After reading 4-5 different methods, I used the following method to reset my SQL Server 2012 keyboard shortcuts: Go to SSMS > Tools >> Import and Export Settings… As I wanted to reset all the settings I selected the “Reset all settings” option, but you can select other options as per your need. I suggest you save your current Settings; however, in my case, I did not like the current option so I just decided to overwrite my settings. Here I have two options –  I can either set my shortcut to SQL Server 2012 settings or Visual Studio 2010. I went ahead with the SQL Server 2012 option. Success! Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Server Management Studio, SQL Tips and Tricks, T SQL, Technology

  Read the article

• Digital Storage for Airline Entertainment

  - by Bill Evjen

  by Thomas Coughlin Common flash memory cards The most common flash memory products currently in use are SD cards and derivative products (e.g. mini and micro-SD cards) Some compact flash used for professional applications (such as DSLR cameras) Evolution of leading flash formats Standardization –> market expansion Market expansion –> volume iNAND –> focus is on enabling embedded X3 iSSD –> ideal for thin form factor devices Flash memory applications Phones are the #1 user of flash memory Flash memory is used as embedded and removable storage in many mobile applications Flash memory is being used in computers as USB sticks and SSDs Possible use of flash memory in computer combined with HDDs (hybrid HDDs and paired or dual storage computers) It can be a removable card or an embedded card These devices can only handle a specific number of writes Flash memory reads considerably quicker than hard drives Hybrid and dual storage in computers SSDs can provide fast performance but they are expensive HDDs can provide cheap storage but they are relatively slow Combining some flash memory with a HDD can provide costs close to those of HDDs and performance close to flash memory Seagate Momentus XT hybrid HDD Various dual storage offerings putting flash memory with HDDs Other common flash memory devices USB sticks All forms and colors Used for moving files around Some sold with content on them (Sony Movies on USB sticks) Solid State Drives (SSDs) Floating Gate Flash Memory Cell When a bit is programmed, electrons are stored upon the floating gate This has the effect of offsetting the charge on the control gate of the transistor If there is no charge upon the floating gate, then the control gate’s charge determines whether or not a current flows through the channel A strong charge on the control gate assumes that no current flows. A weak charge will allow a strong current to flow through. Similar to HDDs, flash memory must provide: Bit error correction Bad block management NAND and NOR memories are treated differently when it comes to managing wear In many NOR-based systems no management is used at all, since the NOR is simply used to store code, and data is stored in other devices. In this case, it would take a near-infinite amount of time for wear to become an issue since the only time the chip would see an erase/write cycle is when the code in the system is being upgraded, which rarely if ever happens over the life of a typical system. NAND is usually found in very different application than is NOR Flash memory wears out This is expected to get worse over time Retention: Disappearing data Bits fade away Retention decreases with increasing read/writes Bits may change when adjacent bits are read Time and traffic are concerns Controllers typically groom read disturb errors Like DRAM refresh Increases erase/write frequency Application characteristics Music – reads high / writes very low Video – r high / writes very low Internet Cache – r high / writes low On airplanes Many consumers now have their own content viewing devices – do they need the airlines? Is there a way to offer more to consumers, especially with their own viewers Additional special content tie into airplane network access to electrical power, internet Should there be fixed embedded or removable storage for on-board airline entertainment? Is there a way to leverage personal and airline viewers and content in new and entertaining ways?

  Read the article

• Silverlight Cream for June 16, 2010 -- #884

  - by Dave Campbell

  In this Issue: Zoltan Arvai, Emiel Jongerius, Charles Petzold, Adam Kinney, Deepesh Mohnani, Timmy Kokke, and Damon Payne. Shoutouts: Andy Beaulieu reported his Coding4Fun: Shuffleboard Game for WP7 has been posted -- Big ol' Tutorial and 6 videos of WP7 goodness Karl Shifflett announced Three New WPF and Silverlight Designer Videos Posted Charles Petzold has a cool Flip-Number Clock in Silverlight posted... cool demo, and the source. From SilverlightCream.com: Data Driven Applications with MVVM Part II: Messaging, Unit Testing, and Live Data Sources Zoltan Arvai has part 2 of his Data-Driven Apps with MVVM up, and this one is also including Messaging, Unit Testing, and Live WCF Data... good tutorial and all the code. Silverlight DataContext Changed Event and Trigger Emiel Jongerius takes a hard swing at the lack of DataContextChanged... his solution involves two attached properties instead of one... check it out and see what you think! Orientation Strategies for Windows Phone 7 Charles Petzold is discussing WP7 Orientation... showing the problems you can get involved in, and how to work through them... and you might be surprised at how he does it :) ... pretty cool as usual, Charles! Debugging the TranslateZoomRotate WPF Behavior in Blend Adam Kinney talks through a bug reported about the WPF TranslateZoomRotate Behavior. Again, it's WPF, but it's in Blend, and ya never know when the solution might apply. I want my app to look like the Zune client Deepesh Mohnani demonstrates using the Cosmopolitan theme to get his app to have the same look as the Zune client. MVVM Project and Item Templates Timmy Kokke is continuing with his cool SilverAmp media player, using it to expand upon the new Blend and Silverlight 4 features. This episode touches very lightly on cranking up a new MVVM project in Blend. Great Features for MVVM Friendly Objects Part 0: Favor Composition Over Inheritance Damon Payne has the first part up of a series he's working on with 'MVVM Friendly' features... he's building out a lot of the infrastructure in this post for the ones that follow... all good stuff. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

  Read the article

• BAM design pointers

  - by Kavitha Srinivasan

  In working recently with a large Oracle customer on SOA and BAM, I discovered that some BAM best practices are not quite well known as I had always assumed ! There is a doc bug out to formally incorporate those learnings but here are a few notes..  EMS-DO parity When using EMS (Enterprise Message Source) as a BAM feed, the best practice is to use one EMS to write to one Data Object. There is a possibility of collisions and duplicates when multiple EMS write to the same row of a DO at the same time. This customer had 17 EMS writing to one DO at the same time. Every sensor in their BPEL process writes to one topic but the Topic was read by 1 EMS corresponding to one sensor. They then used XSL within BAM to transform the payload into the BAM DO format. And hence for a given BPEL instance, 17 sensors fired, populated 1 JMS topic, was consumed by 17 EMS which in turn wrote to 1 DataObject.(You can image what would happen for later versions of the application that needs to send more information to BAM !).  We modified their design to use one Master XSL based on sensorname for all sensors relating to a DO- say Data Object 'Orders' and were able to thus reduce the 17 EMS to 1 with a master XSL. For those of you wondering about how squeaky clean this design is, you are right ! This is indeed not squeaky clean and that brings us to yet another 'inferred' best practice. (I try very hard not to state the obvious in my blogs with the hope that everytime I blog, it is very useful but this one is an exception.) Transformations and Calculations It is optimal to do transformations within an engine like BPEL. Not only does this provide modelling ease with a nice GUI XSL mapper in JDeveloper, the XSL engine in BPEL is quite efficient at runtime as well. And so, doing XSL transformations in BAM is not quite prudent.  The same is true for any non-trivial calculations as well. It is best to do all transformations,calcuations and sanitize the data in a BPEL or like layer and then send this to BAM (via JMS, WS etc.) This then delegates simply the function of report rendering and mechanics of real-time reporting to the Oracle BAM reporting tool which it is most suited to do. All nulls are not created equal Here is yet another possibly known fact but reiterated here. For an EMS with an Upsert operation: a) If Empty tags or tags with no value are sent like <Tag1/> or <Tag1></Tag1>, the DO will be overwritten with --null-- b) If Empty tags are suppressed ie not generated at all, the corresponding DO field will NOT be overwritten. The field will have whatever value existed previously.  For an EMS with an Insert operation, both tags with an empty value and no tags result in –null-- being written to the DO. Hope this helps .. Happy 4th!

  Read the article

• The Niantic Project: Ingress by Felicia Hajra-Lee

  Despite the current fact that the augmented reality game for Android is still in beta phase, it is amazing to see that the world of literature is already taking momentum on this 'real-life' universe. After reading 'The Alignment: Ingress' by Thomas Greanias it took only a blink of the eye to go for 'The Niantic Project: Ingress' by Felicia Hajra-Lee, too. Here is the review I posted on Amazon.com: Ingress, a parallel universe to our reality, is here. There is no doubt about this anymore... The Niantic Project, originated at the CERN collider in Geneva, Switzerland, got into focus of global players. And the game is hard; fair-play is only for the fainted ones. Felicia understands to drag the audience directly into the action of the Niantic Project and its protagonists. The novella is heavily based on the investigations posted daily on the website of Ingress. She really understands how to interweave the various clues and creates an atmosphere where it sometimes feels challenging to differentiate between fiction and reality. It all starts with 'Epiphany Night' at the Niantic Labs, the high exposure of Exotic Matter (XM) and the escape of scientist Dr. Devra Bogdanovich and 'sentinel' Roland Jarvis. Of course, a new research, or should we name it technology, like the Niantic Project has to be protected and there are multiple parties on the hunt. Throughout the various chapters Felicia introduces new potential buyers from all over the globe, gives us detailed insights on the hunters and their brutal effectiveness to finish an assignment, and manages to keep the reader in high-pitched mode thanks to a couple of turn-arounds in the overall story. Personally, I have to say that I really enjoyed reading this title. Felicia's love to details is absolutely amazing, and sometimes I was really wondering whether she would be one of the assassins. But unfortunately I also have to say that I'm not a great fan of the structural organization of the (title-less) chapters. It is fascinating to follow the ventures of Devra, Farlowe and 855 but occasionally I had to go back to previous paragraphs in order to keep track of the individual plots. Overall a great title, captivating and rich in details but simply too short. Please Fecilia, gives us more to read. As an owner of an Android smartphone or tablet, you should get yourself into the world of Ingress. Check out the Play Store to install the app. Now. ;-)

  Read the article

• VS.NET 2010 SP1, Win 7, Parallels, and a MBP&ndash;Hell, my friends&hellip;HELL!

  - by D'Arcy Lussier

  LightSwitch Beta 2 is out. That’s how all this started. All I wanted was to install it on my MBP’s Win7 Parallels VM. But as I’m finding with running a Win7 VM on a MBP, nothing is as easy as it should be. First my MBP froze during the SP1 installation. Not my VM crashing, the entire machine freezing…no mouse, nothing. Had to do a hard reset. BLECH. Then we’re back and I try to re-install SP1 (since the first try obviously failed). I get met with a dialog asking me where silverlight_sdk.msi was. It was *nowhere*! So I hit the net and download it from Microsoft’s site. Unfortunately, it only downloads an exe and not the individual files which would include the msi. Here’s what I did: - Download the tools for Silverlight 4 (http://www.microsoft.com/downloads/en/details.aspx?FamilyID=b3deb194-ca86-4fb6-a716-b67c2604a139&displaylang=en) - Run it, but don’t hit the install or next button when the dialog comes up - Look in your file structure for a folder with a weird name…bunch of numbers and letters. This is a temp folder that the exe creates and dumps all the necessary setup files into, and clears away after its done. - Inside this folder you’ll find the silverlight_sdk.msi (hooray!). Just copy it to a different location on the C drive. You can then cancel installation. Ok, so that takes care of that…but then running the SP1 installer I get hit with *another* dialog asking for the WCF RIA Services SP1 msi. Now it looks like this MSI is part of the Silverlight Tools package because you’ll see the MSI, but the VS.NET 2010 SP1 installer will thumb its nose at this unworthy msi…for whatever reason. So instead, go here: http://www.silverlight.net/getstarted/riaservices/ …and click on the “Install WCF Ria Services Sp1…” option. This downloads the msi, which you should save to your C drive and direct the VS.NET 2010 SP1 installer to. Then, if you’ve done all that, been good all year, and not made any little children cry, you *might* just be able to install VS.NET 2010 SP1 on your Parallels VM. If you were playing that “Take a shot every time he writes VS.NET 2010 Sp1” drinking game, then you’re drunk…which is a better place to be than where I am right now: watching the installation progress bar slowly creep to completion, hoping there’s no more surprises in store. D

  Read the article

• Exam 70-541 - TS: Microsoft Windows SharePoint Services 3.0 - Application Development

  - by DigiMortal

  Today I passed Microsoft exam 70-541: Microsoft Windows SharePoint Services 3.0 - Application Development. This exam gives you MCTS certificate. In this posting I will talk about the exam and also give some suggestions about books to read when preparing for exam. About exam This exam was good one I think. The questions were not hard and also not too easy. Just enough to make sure you really know what you do when working with SharePoint. Or at least to make sure you how things work. After couple of years active SharePoint coding this exam needs no additional preparation. The questions covered very different topics like alerts, features, web parts, site definitions, event receivers, workflows, web services and deployments. There are 59 questions in the exam (this information is available in internet) and you have time a little bit more than two hours. It took me about 40 minutes to get questions answered and reviewed. I strongly suggest you to study the parts of WSS 3.0 you don’t know yet and write some code to find out how to use these things through SharePoint API. Good reading For guys with less experience there are some good books to suggest. Take one or both of these books because there are no official study materials or training kits available for this exam. One of my colleagues who is less experienced than me suggested Inside Microsoft Windows SharePoint Services 3.0 by Ted Pattison and Daniel Larson. He told me that he found this book most useful for him to pass this exam.   When I started with SharePoint Services 3.0 my first book was Developer’s Guide To The Windows SharePoint Services v3 Platform by Todd C. Bleeker. It helped me getting started and later it was my main handbook for some time. Of course, there are many other good books and I suggest you to take what you find. Of course, before buying something I suggest you to discuss with guys who have read the book before. And make sure you mention that you are preparing for exam.   Conclusion If you are experienced SharePoint developer then this exam needs no preparation. Okay, some preparation is always good but if you don’t have time you are still able to pass this exam. If you are not experienced SharePoint developer then study before taking this exam – it is not easy stuff for novices. But if you pass this exam you can proudly say – yes, I know something about SharePoint! :)

  Read the article

• Scrum and Team Consolidation

  - by John K. Hines

  I’m still working my way through one of the more painful team consolidations of my career.  One thing that’s made it hard was my assumption that the use of Agile methods and Scrum would make everything easy.  Take three teams, make all work visible, track it, and presto: An efficient, functioning software development team. What I’ve come to realize is that the primary benefit of Scrum is that Scrum brings teams closer to their customers.  Frequent meetings, short iterations, and phased deployments are all meant to keep the customer in the loop.  It’s true that as teams become proficient with Scrum they tend to become more efficient.  But I don’t think it’s true that Scrum automatically helps people work together. Instead, Scrum can point out when teams aren’t good at working together.   And it really illustrates when teams, especially teams in sustaining mode, are reacting to their customers instead of innovating with them.  At the moment we’ve inherited a huge backlog of tools, processes, and personalities.  It’s up to us to sort them all out.  Unfortunately, after 7 &frac12; months we’re still sorting. What I’d recommend for any blended team is to look at your current product lifecycles and work on a single lifecycle for all work.  If you can’t objectively come up with one process, that’s a good indication that the new team might not be a good fit for being a single unit (which happens all the time in bigger companies).  Go ahead & self-organize into sub-teams.  Then repeat the process. If you can come up with a single process, tackle each piece and standardize all of them.  Do this as soon as possible, as it can be uncomfortable.  Standardize your requirements gathering and tracking, your exploration and technical analysis, your project planning, development standards, validation and sustaining processes.  Standardize all of it.  Make this your top priority, get it out of the way, and get back to work. Lastly, managers of blended teams should realize what I’m suggesting is a disruptive process.  But you’ve just reorganized the team is already disrupted.   Don’t pull the bandage off slowly and force the team through a prolonged transition phase, lowering their productivity over the long term.  You can role model leadership to your team and drive a true consolidation.  Destroy roadblocks, reassure those on your team who are afraid of change, and push forward to create something efficient and beautiful.  Then use Scrum to reengage your customers in a way that they’ll love. Technorati tags: Scrum Scrum Process

  Read the article

• Problem in installation in My Hp g4 1226se

  - by vivek Verma

  1vivek.100 Dual booting error in Hp pavilion g4 1226se Dear sir or Madam, My name is vivek verma.... I am the user of my Hp laptop which series and model name is HP PAVILION G4 1226SE........ i have purchase in the year of 2012 and month is February.....the windows 7 home basic 64 Bit is already installed in in my laptop.... Now i want to install Ubuntu 12.04 Lts or 13.10 lts..... i have try many time to install in my laptop via live CD or USB installer....and i have try many live CD and many pen drive to install Ubuntu ... but it is not done......now i am in very big problem...... when i put my CD or USB drive to boot and install the Ubuntu......my laptop screen is goes the some black (brightness of my laptop screen is very low and there is very low visibility ) and not showing any thing on my laptop screen..... and when i move the my laptop screen.....then there is graphics option in this screen to installation of the Ubuntu option......and when i press the dual boot with setting button and press to continue them my laptop is goes for shutdown after 2 or 5 minutes..... ...... and Hp service center person is saying to me our laptop hardware has no problem.....please contact to Ubuntu tech support............. show please help me if possible..... My laptop configuration is here...... Hardware Product Name g4-1226se Product Number QJ551EA Microprocessor 2.4 GHz Intel Core i5-2430M Microprocessor Cache 3 MB L3 cache Memory 4 GB DDR3 Memory Max Upgradeable to 4 GB DDR3 Video Graphics Intel HD 3000 (up to 1.65 GB) Display 35,5 cm (14,0") High-Definition LED-backlit BrightView Display (1366 x 768) Hard Drive 500 GB SATA (5400 rpm) Multimedia Drive SuperMulti DVD±R/RW with Double Layer Support Network Card Integrated 10/100 BASE-T Ethernet LAN Wireless Connectivity 802.11 b/g/n Sound Altec Lansing speakers Keyboard Full size island-style keyboard with home roll keys Pointing Device TouchPad supporting Multi-Touch gestures with On/Off button PC Card Slots Multi-Format Digital Media Card Reader for Secure Digital cards, Multimedia cards External Ports 1 VGA 1 headphone-out 1 microphone-in 3 USB 2.0 1 RJ45 Dimensions 34.1 x 23.1 x 3.56 cm Weight Starting at 2.1 kg Power 65W AC Power Adapter 6-cell Lithium-Ion (Li-Ion) What's In The Box Webcam with Integrated Digital Microphone (VGA) Software Operating System: Windows 7 Home Basic 64bit....Genuine..... ......... Sir please help me if possible....... Name =vivek verma Contact no.+919911146737 Email [email protected]

  Read the article

• Computer / Software Engineering vs Other Engineering Disciplines [closed]

  - by Mohammad Yaseen

  Since this was a rather specific question, I have tried my best to present this question in a format which fits the style of this site. Please comment if it can be improved further. I have to choose the Engineering discipline on 6th Nov. My interest is in Robotics, hardware-level programming, Artificial Intelligence and back-end programming. I am currently working as a freelance developer using mainly PHP and occasionally working with GWT.I am somewhat familiar with C# and Python too. I am not super good at programming but I do like it. I am thinking to choose Computer and Information Systems Engineering as this is what I love but all the eggheads of my city are going to Mechanical Engineering and when I ask one of them Why are you choosing this? They say It's my interest and for job and the money. Basically I am confused between CIS and Mechanical Engineering, specifically the job market for both. Since this is a programmers' site I think following questions will be relevant . I am asking this because I want to take advice from professionals in this field before diving too deep . Are you happy with your job / work and pay. Are you satisfied with the work environment and career growth Do you feel OK (or great?) about the near and/or distant future of your industry. Why should a person choose Computer if he has other choices i.e what this industry has to offer in particular which other fields of work don't This industry is subject to rapid changes and you have to learn continuously throughout your entire career. Does this learning and constant hard work pay off ? In my country there is no hardware manufacturing. So most of CIS graduates (like Software Engineers) work in Software Houses. What is the scenario in your country. Is a degree titled 'Software' necessary or companies will take Computer Engineers too if they have relevant experience. I am asking this because I plan to move abroad for work. This is going to be something which I'll do for the rest of my life so I am a bit confused about the right choice. You can view the course outline for both programmes below. Computer and Information Systems Engineering. Mechanical Engineering

  Read the article

• ASP.NET 4.0- Menu control enhancement.

  - by Jalpesh P. Vadgama

  Till asp.net 3.5 asp.net menu control was rendered through table. And we all know that it is very hard to have CSS applied to table. For a professional look of our website a CSS is must required thing. But in asp.net 4.0 Menu control is table less it will loaded with UL and LI tags which is easier to manage through CSS. Another problem with table is it will create a large html which will increase your asp.net page KB and decrease your performance. While with UL and LI Tags its very easy very short. So You page KB Size will also be down. Let’s take a simple example. Let’s Create a menu control in asp.net with four menu item like following. <asp:Menu ID="myCustomMenu" runat="server" > <Items> <asp:MenuItem Text="Menu1" Value="Menu1"></asp:MenuItem> <asp:MenuItem Text="Menu2" Value="Menu2"></asp:MenuItem> <asp:MenuItem Text="Menu3" Value="Menu3"></asp:MenuItem> <asp:MenuItem Text="Menu4" Value="Menu4"></asp:MenuItem> </Items></asp:Menu> It will render menu in browser like following. Now If we render this menu control with tables then HTML as you can see via view page source like following.   Now If in asp.net 4.0 It will be loaded with UL and LI tags and if you now see page source then it will look like following. Which will have must lesser HTML then it was earlier like following. So isn’t that great performance enhancement?.. It’s very cool. If you still like old way doing with tables then in asp.net 4.0 there is property called ‘RenderingMode’ is given. So you can set RenderingMode=Table then it will load menu control with table otherwise it will load menu control with UL and LI Tags. That’s it..Stay tuned for more..Happy programming.. Technorati Tags: Menu,Asp.NET 4.0

  Read the article

• Idea to develop a caching server between IIS and SQL Server

  - by John

  I work on a few high traffic websites that all share the same database and that are all heavily database driven. Our SQL server is max-ed out and, although we have already implemented many changes that have helped but the server is still working too hard. We employ some caching in our website but the type of queries we use negate using SQL dependency caching. We tried SQL replication to try and kind of load balance but that didn't prove very successful because the replication process is quite demanding on the servers too and it needed to be done frequently as it is important that data is up to date. We do use a Varnish web caching server (Linux based) to take a bit of the load off both the web and database server but as a lot of the sites are customised based on the user we can only do so much. Anyway, the reason for this question... Varnish gave me an idea for a possible application that might help in this situation. Just like Varnish sits between a web browser and the web server and caches response from the web server, I was wondering about the possibility of creating something that sits between the web server and the database server. Imagine that all SQL queries go through this SQL caching server. If it's a first time query then it will get recorded, and the result requested from the SQL server and stored locally on the cache server. If it's a repeat request within a set time then the result gets retrieved from the local copy without the query being sent to the SQL server. The caching server could also take advantage of SQL dependency caching notifications. This seems like a good idea in theory. There's still the same amount of data moving back and forward from the web server, but the SQL server is relieved of the work of processing the repeat queries. I wonder about how difficult it would be to build a service that sort of emulates requests and responses from SQL server, whether SQL server's own caching is doing enough of this already that this wouldn't be a benefit, or even if someone has done this before and I haven't found it? I would welcome any feedback or any references to any relevant projects.

  Read the article

• Download Internet Explorer 9 RTM

  - by Harish Ranganathan

  The much anticipated RTM release of Internet Explorer 9 (IE9) happened today.  IE9 preview release was first showcased at MIX 2010 and post that there were 7-8 Platform Preview releases.  Also, IE9 Beta came out in September 2010 with close to 10 million downloads within a month.  More recently, the RC version was out with much improved performance.  Today, marks the launch of IE9 RTM.  What this means is that, within an year, the IE Team has shipped the stable product, much faster than the earlier cycles for IE8 and IE7.  I wanted to clarify a few things (myths) that arise in common 1. I am already using Chrome and its faster for me, why would I need IE9 IE9 uses 100% hardware acceleration which means, you are going to get the best of performance compared to any other browser that shipped/will ship in future.  With native Windows support, IE9 will outperform all other browsers in terms of performance. 2. What about standards and security Agreed IE6 hasn’t been in the best of standards, but why would someone compare IE6 which was released almost 10 years back.  Later, we shipped IE7 and IE8 which had the best of standards and supports during their timeframes, but one would agree that standards and specifications keep getting updated and its hard to keep pace with the same for older browsers.  Example. HTML5 support is not there in IE8 but it is very much there in IE9.  IE9 supports most of the stable standards of HTML5 and its going to provide preview releases for the work-in-progress standards. 3. IE doesn’t keep in pace with other browsers Agreed! we don’t force/release updates on major versions in very short time periods.  What we do is provide Windows Update that provides security updates/patches and other critical updates for not just IE but the whole of Windows operating system 4. I am running Windows XP, what do I do? This is the trickiest part.  Windows XP isn’t the supported operating system for IE9 and there are various reasons to it.  The recommended operating system is Windows Vista and Windows 7.  In the interest of technology and its pace, we had to discontinue Windows XP both from a retail selling perspective as well as IE9 support.  But, the recent 2 years has seen PCs/Laptops only shipped with Windows Vista or Windows 7 so, it shouldn't affect them. 5. Where do I verify IE9’s performance/standard support and other information. http://samples.msdn.microsoft.com/ietestcenter/  Here below is a snapshot of one of the tests. Clearly IE9 outperforms all other browsers and will continue to outperform them in future.  You can download IE9 from www.beautyoftheweb.com Cheers!!!

  Read the article

• How to become a solid python web developer [closed]

  - by Estarius

  Possible Duplicate: How do I learn Python from zero to web development? I have started Python recently with the goal to become a solid developer to make a web application eventually. However, as time goes by I am wondering if I am being optimal about how I will achieve my goal. I would compare it to a game for example, to be better you must spend time playing and trying new things... However, if you just log in and sit in the lobby chatting you are most likely not progressing. So far, this is my plan (feel free to comment or judge it): Review basic programmation concepts Start coding slowly in Python Once comfortable in Python, learn about web development in Python Learn about those things we heard about: SQLAlchemy, MVC, TDD, Git, Agile (Group project) To achieve these things, I started the Learn python the hard way exercises, which I am doing at the rate of 5 per days. I also started to read Think Python at the same time and planning to move on with Dive into python. As far as my research goes, these documentations along with Python documentation is usually what is the most recommended to learn Python. I consider this to get my point 1 and 2 done. While learning Python is really great, my goal remains to do quality web development. I know there are books about Django etc. however I would like to become comfortable with any Python web development. This means without Framework and with Framework... Any framework, then be able to choose the one which best fits our needs. For this I would like to know if some people have suggestions. Should I just get a book on Django and it should apply to everything ? What would be the best method to go from Python to Web Python and not end up creating crappy code which would turn into nightmares for other programmers ? Then finally, those "things we hear about". While I understand what they all do basically, I am fairly sure that like everything, there are good and wrong ways of making use of them. Should I go through at least a whole book on each before starting to use them or keep it at their respective online documentation ? Are there some kind of documentation which links their use to Python ? Also, from looking at Django and Pyramid they seems to use something else than MVC, while the Django model looks similar, the Pyramid one seems to cut a whole part of it... Is learning MVC still worth it ? Sorry for the wall of text, Thanks in advance !

  Read the article

• Inside Red Gate - Ricky Leeks

  - by Simon Cooper

  So, one of our profilers has a problem. Red Gate produces two .NET profilers - ANTS Performance Profiler (APP) and ANTS Memory Profiler (AMP). Both products help .NET developers solve problems they are virtually guaranteed to encounter at some point in their careers - slow code, and high memory usage, respectively. Everyone understands slow code - the symptoms are very obvious (an operation takes 2 hours when it should take 10 seconds), you know when you've solved it (the same operation now takes 15 seconds), and everyone understands how you can use a profiler like APP to help solve your particular problem. High memory usage is a much more subtle and misunderstood concept. How can .NET have memory leaks? The garbage collector, and how the CLR uses and frees memory, is one of the most misunderstood concepts in .NET. There's hundreds of blog posts out there covering various aspects of the GC and .NET memory, some of them helpful, some of them confusing, and some of them are just plain wrong. There's a lot of misconceptions out there. And, if you have got an application that uses far too much memory, it can be hard to wade through all the contradictory information available to even get an idea as to what's going on, let alone trying to solve it. That's where a memory profiler, like AMP, comes into play. Unfortunately, that's not the end of the issue. .NET memory management is a large, complicated, and misunderstood problem. Even armed with a profiler, you need to understand what .NET is doing with your objects, how it processes them, and how it frees them, to be able to use the profiler effectively to solve your particular problem. And that's what's wrong with AMP - even with all the thought, designs, UX sessions, and research we've put into AMP itself, some users simply don't have the knowledge required to be able to understand what AMP is telling them about how their application uses memory, and so they have problems understanding & solving their memory problem. Ricky Leeks This is where Ricky Leeks comes in. Created by one of the many...colourful...people in Red Gate, he headlines and promotes several tutorials, pages, and articles all with information on how .NET memory management actually works, with the goal to help educate developers on .NET memory management. And educating us all on how far you can push various vegetable-based puns. This, in turn, not only helps them understand and solve any memory issues they may be having, but helps them proactively code against such memory issues in their existing code. Ricky's latest outing is an interview on .NET Rocks, providing information on the Top 5 .NET Memory Management Gotchas, along with information on a free ebook on .NET Memory Management. Don't worry, there's loads more vegetable-based jokes where those came from...

  Read the article

• When should complexity be removed?

  - by ElGringoGrande

  Prematurely introducing complexity by implementing design patterns before they are needed is not good practice. But if you follow all (or even most of) the SOLID principles and use common design patterns you will introduce some complexity as features and requirements are added or changed to keep your design as maintainable and flexible as needed. However once that complexity is introduced and working like a champ when do you removed it? Example. I have an application written for a client. When originally created there where several ways to give raises to employees. I used the strategy pattern and factory to keep the whole process nice and clean. Over time certain raise methods where added or removed by the application owner. Time passes and new owner takes over. This new owner is hard nosed, keeps everything simple and only has one single way to give a raise. The complexity needed by the strategy pattern is no longer needed. If I where to code this from the requirements as they are now I would not introduce this extra complexity (but make sure I could introduce it with little or no work should the need arise). So do I remove the strategy implementation now? I don't think this new owner will ever change how raises are given. But the application itself has demonstrated that this could happen. Of course this is just one example in an application where a new owner takes over and has simplified many processes. I could remove dozens of classes, interfaces and factories and make the whole application much more simple. Note that the current implementation does works just fine and the owner is happy with it (and surprised and even happier that I was able to implement her changes so quickly because of the discussed complexity). I admit that a small part of this doubt is because it is highly likely the new owner isn't going to use me any longer. I don't really care that somebody else will take this over since it has not been a big income generator. But I do care about 2 (related) things I care a bit that the new maintainer will have to think a bit harder when trying to understand the code. Complexity is complexity and I don't want to anger the psycho maniac coming after me. But even more I worry about a competitor seeing this complexity and thinking I just implement design patterns to pad my hours on jobs. Then spreading this rumor to hurt my other business. (I have heard this mentioned.) So... In general should previously needed complexity be removed even though it works and there has been a historically demonstrated need for the complexity but you have no indication that it will be needed in the future? Even if the question above is generally answered "no" is it wise to remove this "un-needed" complexity if handing off the project to a competitor (or stranger)?

  Read the article

< Previous Page | 378 379 380 381 382 383 384 385 386 387 388 389  | Next Page >