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• What is best practice for search engines when a website is under maintenance?

  - by jamescridland

  I need around a week to transition a heavily data-driven website from one back end to another. During that time I do plan to attempt to keep some pages live, but they won't all work well or look brilliant. Some pages won't work at all. What is the best way to ensure I don't scare Google? Should I hide everything from robots.txt, or mark everything that doesn't work as "503", or are there other things that I should be considering?

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• P-Commerce – What The Heck Is That?

  - by Michael Hylton

  We’ve heard of e-commerce, m-commerce (Mobile Commerce), and f-commerce (Facebook Commerce) but what is p-commerce?  It’s not truly a customer touchpoint or channel but the emphasis on personalization of the buying experience. Ask yourself how well do you know your customer?  Are you able to take what you know about them and apply it to their commerce activity with you and personalize the shopping experience? Much of this is dictated by have a complete 360 degree view of your customer, collecting data from your website, sales interactions, historical commerce purchases, call center activity, how they got to your website, etc. and applying it to their current commerce interaction.  Customers expect to have a similar interaction on your website as they would in your brick-and-mortar store, displaying the products and services that they might be interested in purchasing.

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• What steps should be taken to make sure your software is usable by disabled people?

  - by Cromulent

  I want to make sure a piece of software I am writing is usable by people with various disabilities such as blindness and an inability to use a mouse and / or keyboard. Unfortunately I have no experience with things such as screen readers or other methods that disabled people use to make using a computer easier / possible. I've never really had much experience with disabilities at all and unfortunately I don't know any disabled people who I can ask. I was wondering what other people do to make sure that their software is available to a wide range of people with varying abilities? This seems to be a subject matter that is often ignored by developers and I think it is a real shame.

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• How can I become a technical trainer from a software developer?

  - by Abhilasha

  I am a software developer; in fact a mobile application developer with 4 years of experience. I am passionate about training. I have never been an official trainer but, I have trained freshers on mobile technologies. Now how do I become a professional technical trainer. I have following questions: Do I need some kind of professional certification or degree? Is it too early for me to start as a trainer? I mean experience wise. I will not ask if it's worth it because I am very keen on pursuing training as a profession. However, if I have to be up to date with technology, I don't think I can give up coding and pursue training full time. Any pointers or guidelines would be helpful.

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• What caused you to stop using UML tools on your team?

  - by jamie

  There seems to be plenty of good, free UML tools. I hear about UML tools being used by large organizations, and they seem to have plenty of advocates. However, in my career I have never seen them used beyond "dabbling". Now, I have seen many UML diagrams drawn on whiteboards, and I use them myself all the time, on paper, to think about problems. I've also seen articles such as this one claiming why developers don't use UML, but the arguments just don't land with me. Frankly, this seems like an opportunity for a start-up if one can figure out why developers really don't use them, and solve those problems. So I'm asking anyone here who has attempted to use UML tools in a team, and stopped, this question: "why did you stop?" I'm especially interested in experience from agile teams. I am looking for concrete experience, not hypothetical opinion. Thanks.

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• Synaptics touchpad sensitivity. Issue?

  - by Dave

  Just installed 12.04 LTS and I experience some problems with my touchpad. Everytime I tap/double tap the touch the cursor is moving around (not static as should be) (for example if I want to close a window, I click on "x" button from touchpad, the cursor is moving and not always hit the "x" button). Touchpad buttons left click, right click are working well, but tap not. Did u guys experience the same problem? Is there something related to sensitivity? How to fix it? PS: on Ubuntu 11.10 didn't had this issue

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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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• is jargon related to a frameWork (concept)

  - by MaKo

  If this is not the right place to ask this question please inform where it would belong, to change it... I have a doubt for the correct word or concept in english language [not my native], about the relationship of language to framework for example i work with objective C, with the cocoa touch frame work || python with the django frame work My comparison is between natural languages and formal languages, So would be in a natural language english and the frame work a [computer, it]jargon? Does this make sense? Or what other concept would be the relationship between natural language - framework?

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• How often should saving to disk occur in an automatically saving text editor?

  - by lelandmiller

  I am developing a simple text editor and would like the application to save the text automatically. In other words, the user would never have to press a save button. I have seen other applications that do this, and was wondering how often is it safe to write files to disk? From a user experience standpoint, it seems that the more frequently this happens the better, but I am worried about performance and possible disk wear (especially on writes to SSDs). It seems like the operating system disk caching might help avoid these problems, but I also don't know if its safe to rely on that for an application like this. I was planning on writing the whole document to disk at each save, but this just seems terribly inefficient if the OS ends up writing it to disk to frequently, but relying on program unload may lose data in the case of a crash. Does anyone have any experience dealing with this that might be able to help?

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• Nokia at JavaOne

  - by Tori Wieldt

  Nokia has long been a key partner for Java Mobile, and they continue investing significantly in Java technologies. Developers can learn more about Nokia's popular Asha phone and developer platform at JavaOne. In addition to interesting technical material, all Nokia sessions will include giveaways (hint: be engaged and ask questions!). Don't miss these great sessions: CON4925 The Right Platform with the Right Technology for Huge Markets with Many Opportunities CON11253 In-App Purchasing for Java ME Apps BOF4747 Look Again: Java ME's New Horizons of User Experience, Service Model, and Internet Innovation BOF12804 Reach the Next Billion with Engaging Apps: Nokia Asha Full Touch for Java ME Developers CON6664 on Mobile Java, Asha, Full Touch, Maps APIs, LWUIT, new UI, new APIs and more CON6494 Extreme Mobile Java Performance Tuning, User Experience, and Architecture BOF6556 Mobile Java App Innovation in Nigeria

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• Futures/Monads vs Events

  - by c69

  So, the question is quite simple: in an application framework, when performance impact can be ignored (10-20 events per second at max), what is more maintainable and flexible to use as a preferred medium for communication between modules - Events or Futures/Promices/Monads ? Its often being said, that Events (pub/sub, mediator) allow loose-coupling and thus - more maintainable app... My experience deny this: once you have more that 20+ events - debugging becomes hard, and so is refactoring - because it is very hard to see: who, when and why uses what. Promices (i'm coding in javascript) are much uglier and dumber, than Events. But: you can clearly see connections between function calls, so application logic becomes more straight-forward. What i'm afraid. though, is that Promices will bring more hard-coupling with them... p.s: the answer does not have to be based on JS, experience from other functional languages is much welcome.

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• Using lambdas for WPF animation

  Shows how to use lambdas and higher-order functions for WPF graphics work

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• Custom PC won't boot Windows 7 dvd but does with windows vista

  - by M_rk

  I ordered a custom build PC. (It was assembled by the store). This is the setup Motherboard: Asrock A75 PRO4-M DVD drive: LG GH24NS90 SSD: Samsung 830 series 128GB DDR3 SDRAM: 2× Corsair XMS3 CMX4GX3M1A1600C9 (2× 4GB) APU (CPU+GPU): AMD A8-3850 Boxed I got a installation DVD for Windows 7 Professional x64 English (including SP1), but it doesn't work. I got a new one from the store and it doesn't work either. However they work on a other PC. So the DVDs aren't bad. I tried an old installation DVD for Windows Vista. Both 32 bit and 64 bit work. So the boot order and such are right and working on the new PC. Is there something I'm missing here? Any ideas on how to make it work?

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• Why do almost all Java jobs (postings and from recruiters) say J2EE rather than the newer JEE versions?

  - by Rick

  I'm still fairly new to Java but have definite comfort now working within the framework I am used to which would mainly be focused on Spring, Hibernate and JEE 6. It seems like every time I talk to a recruiter all they do is throw around the keyword "J2EE", they need someone with J2EE experience, etc. I am aware that legacy systems would still be using J2EE but it seems like at least some jobs would be advertising JEE now. Just curious if they are just stuck with some keyword that they can't seem to wrap their heads around it having a newer version or what. Having not done Java all that long, I haven't used J2EE specifically but wouldn't it be fairly easy to adapt having used the newer enterprise edition? Just curious to hear anything about this from someone with more experience.

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• A can ping B, B can ping C but A cant ping C. How do i connect A to C (ethernet)?

  - by user16654

  I have a computer at home with ip 192.168.221.xxx I have another computer at work that I can ping and it has 2 ip addresses: 192.168.1.xxx and 192.168.0.xxx. Those last 2 addresses have the same gateway ie 192.168.1.1 . The computer at work is connected to a hub. That hub also has an embedded device connected to it with address 192.168.0.xxx Now from my home computer I cannot ping this embedded device. How would I connect to it without changing the subnetwork it connects to? I can ping the embedded device from my work computer and I can ping the work computer from my home computer. So I am trying to connect to the embedded device from my home computer through my work computer. Port forwarding? how would I establish that on Ubuntu?

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• Xorg and Virtualbox break after installing Xen

  - by stueng

  I installed XEN using these instructions https://help.ubuntu.com/community/Xen Now when I rebooted virtualbox doesnt work, X doesnt work, lightdm doesnt work How can I set it back to how it was before? I presume I want to revert the following actions: Modify GRUB to default to booting Xen: sudo sed -i 's/GRUB_DEFAULT=.*\+/GRUB_DEFAULT="Xen 4.1-amd64"/' /etc/default/grub sudo update-grub Can someone tell me how?

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• 50 Open Source Tools: Desktop Downloads

  Have open source tool, will travel: Open source tools for every aspect of the Linux desktop experience.

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• java or .net or xml, SOAP need carrer guidance

  - by s.nigam

  0 down vote favorite Share on Facebook Share on Twitter First of all let me thank you all for reading & devoting time for my question. I am developer with around 3.7 years of experience in .net. I recently discussed & visited some of the websites which states that java is better then .net, a I also discussed with some of the experience persons all suggested me to switch to java of course spring, struts etc. As Java developer is being paid high then .net one. I personally think I should go for web services SOAP, XML etc. thanks to all for response I also want to know if I can only move to webservices ex. WCF, SOAP, XML, XSLT etc. Kindly help me I am bit confused. Thanks

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• Free eBook - Control Your Transaction Log so it Doesn't Control You

  Download your free copy of SQL Server Transaction Log Management and see why understanding how log files work can make all the difference in a crisis. Want to work faster with SQL Server?If you want to work faster try out the SQL Toolbelt. "The SQL Toolbelt provides tools that database developers as well as DBAs should not live without." William Van Orden. Download the SQL Toolbelt here.

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• Cloud Computing in words of one syllable

  - by harry.foxwell(at)oracle.com

  A colleague of mine challenged me to describe Cloud Computing in words of one syllable so that even his 80-year-old mother-in-law could understand the concept.  Hmmmm...The Cloud lets you do all your work on the Web or on your own net. It lets you set up your own work; no one has to set it up for you.  When you need more disk space, the cloud makes it for you.  When you need more speed, the cloud adds more gear to make your jobs go fast.  You share the cloud with more than just your own work, and you just pay for what you use.  The cloud is not new; this type of work has been done for years; just the word is new.  Now you know what the cloud is.  Or not.

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• JEE project(s) to show prospective employers

  - by My code has no bugs

  I'm studying JEE and want to get employed doing JEE work in the near future. From reading this website and various others, I now know that many employers value a github profile with code samples, projects and the like. Since I want to get hired doing JEE stuff, what kind of projects can I work on to eventually place on github showing prospective employers? Is there any (non-nonsense) project(s) which uses the JEE stack I can work on ?

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• Chemical alternatives to caffeine / coffee for mental clarity and alertness? [on hold]

  - by einsteinx2

  Currently I drink about 2 cups of coffee or tea a day (one in the morning and one in the afternoon usually). However I'm very sensitive to stimulants and drinking caffeine regularly keeps my resting heart rate really high, causes occasional heart palpitations, and sometimes trouble sleeping. I've tried going without coffee, and while I can do it, I have trouble concentrating at work and even just enjoying my work. I'm borderline ADD (or possibly full on ADD, but haven't been checked). And I tend to lose focus easily if I don't have some coffee or tea in me. For health reasons, I'd like to cut it out completely, but when I do my work performance seriously suffers. I already work out (cardio and/or weight lifting) 5 - 6 days a week, and get an average of about 8 hours of sleep, but I still can't focus throughout the day without caffeine. Are there any over the counter chemical or supplement alternatives for mental clarity that you've used with success don't cause the additional unwanted physical side effects that come with regular stimulants like caffeine?

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• ubuntu 12.10 question?

  - by Arwyn

  im new here so sorry if I anoy you guys with hearing this question all the times :P anyway cut to the chase.... will this version of ubuntu (once finished) work on Raspberry PI? im just curious :P would be better to make it work on it so it would shut people up I guess :P and no I dont own a rasbperry pi :P just a reasearch person :P if ubuntu 12.10 will work on it I will save to buy one and give some monney to the ubuntu comp :P

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• Is there an equivalent of RDP?

  - by detly

  The "Desktop Sharing" settings that come installed by default seem to use VNC. VNC is a bit of a bandwidth hog, can only work at the resolution of whatever screen is attached to the host, and mirrors every action on the host. (It also seems to work poorly with compositing, but maybe that's been fixed.) I know about X tunnelling, but that's annoying to use and doesn't always work properly (or, more accurately, some apps don't work properly). Is there any kind of protocol in between the two, similar to RDP used for Windows? Specifically, something that can run at a different resolution to the host screen and is a little lighter on the network? (Ideally, the more the protocol could have in common with RDP, the better.)

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• Fixing a bug while working on a different part of the code base

  - by imgx64

  This happened at least once to me. I'm working on some part of the code base and find a small bug in a different part, and the bug stops me from completing what I'm currently trying to do. Fixing the bug could be as simple as changing a single statement. What do you do in that situation? Fix the bug and commit it together with your current work Save your current work elsewhere, fix the bug in a separate commit, then continue your work [1] Continue what you're supposed to do, commit the code (even if it breaks the build fails some tests), then fix the bug (and the build make tests pass) in a separate commit [1] In practice, this would mean: clone the original repository elsewhere, fix the bug, commit/push the changes, pull the commit to the repository you're working on, merge the changes, and continue your work. Edit: I changed number three to reflect what I really meant.

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