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  • What's a good Game development platform for a platformer game with these characteristics?

    - by Joe
    Yes, I know, the best way to make an indie game is to learn to code. I've got some scripting experience, but I want to do worldbuilding with already-existing tools (and communities surrounding those tools), and I've been really impressed with games like An Untitled Story that were made with pre-packaged toolsets at their core, like Game Maker. :) So I'm planning to make my game using either Game Maker or something like it. The basic parameters of my planned game: -2D platformer. -Physics/speed akin to Sonic the Hedgehog. -Large, non-linear world, flowing as seamlessly as possible -- think Super Metroid, but without the forced screen transitions. The first two points have me leaning toward Game Maker -- Plenty of 2D platformers have been made with it, and there are serviceable, openly available Sonic-the-Hedgehog-style physics engines for it that could be adapted to my needs with minimal muss and fuss. But the third makes me antsy -- from what limited information I hear, Game Maker has problems with large levels/boards/screens/whateveryoucallthem, thus necessitating transitions between screens. I want to avoid that if at all possible -- it would, I believe, fundamentally alter the flow of the game. I understand that generally speaking, the more you have loaded into memory the more things are going to chug (especially for a one-size-fits-all game development platform that isn't a model of efficient coding), but I'm hoping there are systems that can un-load objects that are sufficiently far offscreen and thus better produce seamlessness. Any thoughts, people? :) The sooner I can get a basic pre-fab physics engine and world-building program up and running, the sooner I can start prototyping areas and generally tooling around. Should I be looking at Game Maker, or elsewhere? (My current plan is to more-or-less build the game prototype-style, then worry about art and sound at the very end once the damn thing is playable.)

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  • Is the output of Eclipse's incremental java compiler used in production? Or is it simply to support Eclipse's features?

    - by Doug T.
    I'm new to Java and Eclipse. One of my most recent discoveries was how Eclipse comes shipped with its own java compiler (ejc) for doing incremental builds. Eclipse seems to by default output incrementally built class files to the projRoot/bin folder. I've noticed too that many projects come with ant files to build the project that uses the java compiler built into the system for doing the production builds. Coming from a Windows/Visual Studio world where Visual Studio is invoking the compiler for both production and debugging, I'm used to the IDE having a more intimate relationship with the command-line compiler. I'm used to the project being the make file. So my mental model is a little off. Is whats produced by Eclipse ever used in production? Or is it typically only used to support Eclipse's features (ie its intellisense/incremental building/etc)? Is it typical that for the final "release" build of a project, that ant, maven, or another tool is used to do the full build from the command line? Mostly I'm looking for the general convention in the Eclipse/Java community. I realize that there may be some outliers out there who DO use ecj in production, but is this generally frowned upon? Or is this normal/accepted practice?

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  • Remote Mac OS X server using Windows 7 with VNC

    - by Ali
    I've search most of the topic around here in @SuperUser and around most of the webs they can easily access Windows uing Mac OS X but I have a question can I access my Mac using Windows? I've activate my screen sharing on my Mac OS X and I can use another Macbook to access it no problem but once I use TightVNC or UltraVNC and any VNC base program non of them really worked for me. So is there any alternative to VNC to give me option to access my Mac using VNC or something like that? Thanks.

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  • OT: Fixing choppy video playback on OS X

    - by terrencebarr
    This is a bit off-topic but I wanted to share because it seems a lot of people are running into issues with choppy video playback and stutter on Mac OS X. I am using a Mac Mini with Snow Leopard (10.6.8) as a home media center and it has worked great in the past, playing back music and videos from multiple sources (web, quicktime, VLC, EyeTV). A few weeks ago the video playback from all my sources started to become choppy, to stutter, and often the picture would hang for seconds at a time. Totally unusable. Drove me nuts for two weeks. After much research and trial-and-error it turns out the problem was an outdated Flash Player which seems to have messed up the video pipeline for the entire system. The short is, I updated the Flash Player to version 11 directly from the Adobe web site, rebooted the Mac Mini, and all is well again! Judging from the various posts across the web, video playback appears to be a fairly widespread problem for Mac users and I hope this helps some of you out there! And I can’t wait to get rid of Flash altogether – I can’t remember the times it has crashed my browser, hung my system, and screwed up things. Thanks Adobe ;-( Cheers, – Terrence Filed under: Uncategorized Tagged: Adobe Flash, Mac OS X

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  • Purpose of "new" keyword

    - by Channel72
    The new keyword in languages like Java, Javascript, and C# creates a new instance of a class. This syntax seems to have been inherited from C++, where new is used specifically to allocate a new instance of a class on the heap, and return a pointer to the new instance. In C++, this is not the only way to construct an object. You can also construct an object on the stack, without using new - and in fact, this way of constructing objects is much more common in C++. So, coming from a C++ background, the new keyword in languages like Java, Javascript, and C# seemed natural and obvious to me. Then I started to learn Python, which doesn't have the new keyword. In Python, an instance is constructed simply by calling the constructor, like: f = Foo() At first, this seemed a bit off to me, until it occurred to me that there's no reason for Python to have new, because everything is an object so there's no need to disambiguate between various constructor syntaxes. But then I thought - what's really the point of new in Java? Why should we say Object o = new Object();? Why not just Object o = Object();? In C++ there's definitely a need for new, since we need to distinguish between allocating on the heap and allocating on the stack, but in Java all objects are constructed on the heap, so why even have the new keyword? The same question could be asked for Javascript. In C#, which I'm much less familiar with, I think new may have some purpose in terms of distinguishing between object types and value types, but I'm not sure. Regardless, it seems to me that many languages which came after C++ simply "inherited" the new keyword - without really needing it. It's almost like a vestigial keyword. We don't seem to need it for any reason, and yet it's there. Question: Am I correct about this? Or is there some compelling reason that new needs to be in C++-inspired memory-managed languages like Java, Javascript and C#?

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  • How do I target a specific driver for libata kernel parameter modding?

    - by DanielSmedegaardBuus
    Sorry for the cryptic title. Not sure how to phrase it. This is it in a nutshell: I'm running a 22-disk setup, 19 of those in a ZFS array, 15 of those backed by three port multipliers attached to SATA controllers driven by the sata_sil24 module. When running full speed (SATA2, i.e. 3 Gbps), the operation is pretty quirky (simple read errors will throw an entire PMP into spasms for a long time, sometimes with pretty awful results). Booting with kernel parameter libata.force=1.5G to force SATA controllers into "legacy" speeds completely fixes all issues with the PMPs. Thing is, my ZFS pool is backed by a fast cache SSD on my ICH10R controller. Another SSD on this same controller holds the system. Doing libata.force=1.5G immediately shaves about 100 MB/s off the transfer rate of my SSDs. For the root drive, that's not such a big deal, but for the ZFS cache SSD, it is. It effectively makes the entire zpool slower for sustained transfers than it would've been without the cache drive. Random access and fs tree lookups, of course still benifit. I'm hoping, though, that there's some way to pass the .force=1.5G parameter on to just the three SATA controllers being backed by the sata_sil24 module. But listing the module options for this, no such option exists. Is this possible? And if so, how? Thanks :)

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  • Finding a way to simplify complex queries on legacy application

    - by glenatron
    I am working with an existing application built on Rails 3.1/MySql with much of the work taking place in a JavaScript interface, although the actual platforms are not tremendously relevant here, except in that they give context. The application is powerful, handles a reasonable amount of data and works well. As the number of customers using it and the complexity of the projects they create increases, however, we are starting to run into a few performance problems. As far as I can tell, the source of these problems is that the data represents a tree and it is very hard for ActiveRecord to deterministically know what data it should be retrieving. My model has many relationships like this: Project has_many Nodes has_many GlobalConditions Node has_one Parent has_many Nodes has_many WeightingFactors through NodeFactors has_many Tags through NodeTags GlobalCondition has_many Nodes ( referenced by Id, rather than replicating tree ) WeightingFactor has_many Nodes through NodeFactors Tag has_many Nodes through NodeTags The whole system has something in the region of thirty types which optionally hang off one or many nodes in the tree. My question is: What can I do to retrieve and construct this data faster? Having worked a lot with .Net, if I was in a similar situation there, I would look at building up a Stored Procedure to pull everything out of the database in one go but I would prefer to keep my logic in the application and from what I can tell it would be hard to take the queried data and build ActiveRecord objects from it without losing their integrity, which would cause more problems than it solves. It has also occurred to me that I could bunch the data up and send some of it across asynchronously, which would not improve performance but would improve the user perception of performance. However if sections of the data appeared after page load that could also be quite confusing. I am wondering whether it would be a useful strategy to make everything aware of it's parent project, so that one could pull all the records for that project and then build up the relationships later, but given the ubiquity of complex trees in day to day programming life I wouldn't be surprised if there were some better design patterns or standard approaches to this type of situation that I am not well versed in.

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  • Social IT guy barrier [closed]

    - by sergiol
    Possible Duplicate: How do you deal with people who ask you to fix their computer? Hello. Almost every person that deserves the title of being a programmer as faced the problem of persons that do not even remember the mere existence of those professionals, unless they have serious problems in their computer or some other IT related problem. May be my post will be considered off-topic, but I think it is a very important question. As Joel Spolsky says, IT guys are not Asperger geeks, and they need social life like everybody. But the people that is always asking for favors from us, can ruin deeply our social and personal life. I could experience this by myself. This fact as generated articles like http://www.lifereboot.com/2007/10-reasons-it-doesnt-pay-to-be-the-computer-guy/ and http://ecraazul.wordpress.com/2009/01/29/o-gajo-da-informatica-de-a-a-z/ (I received this one in my mailbox. It is in Portuguese, but I believe it is translated from English). Basically the idea is to criticize people that is always asking us favors. It is even more annoying if you are person very specialized in some subject and a person asks you a completely out-of-that-context question. For example, you are a VBA programmer and somebody says you to that his/her Mobile Internet Pen stopped to work five days ago and needs your help to put it working again. When you go to a doctor to fix your legs, you don't go to an ophthalmologist. You go to an orthopedist. And you pay. I don't how it works in other countries, but in Portugal being a doctor is so an overvalued job, that they earn very much money and almost nobody asks them free favors. So, my question is: what kind of social barrier (or whatever else) do you use to protect yourself from that situation?

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  • Does disable log error for MySQL increasing it's performance ? How disable it?

    - by adnan
    Does disable log error for MySQL increasing it's performance ? How disable it ? This is my service status Server load 0.63 (8 CPUs) Memory Used 23.38% (957,600 of 4,096,000) Swap Used 0% (0 of 1) And this is print screen for process manager http://elnhrda.com/promgr.jpg This is my.cnf [mysqld] query_cache_size=64M skip-name-resolve #innodb_file_per_table=1 query_cache_limit=2M read_buffer_size = 2M read_rnd_buffer_size = 16M sort_buffer_size = 8M join_buffer_size = 8M thread_cache_size = 8 thread_concurrency = 8 innodb_buffer_pool_size = 2G Iam looking for doing any thing to increase my website speed I have VPS 4G.B RAM CENTOS 6 X86_64 Note please : this statics taken now which no any queries executed & site have not any visitors in the same time

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  • Error- D:\ is not accessible. Access is denied

    - by Aaron
    All of the sudden the D drive gives me an error when I try to open it: D:\ is not accessible. Access is denied. I have files on the drive that I would like to recover, so I do not want to reformat the drive. It acts almost like the computer doesn't recognize the drive. I have a feeling it's something with security settings, I may have accidentally changed something on the drive. I'm running on a Acer Aspire laptop on Windows Vista, SP2. I beleive both the C and the D drive run off of the same disk drive. At least that's all the Device Manager shows. So correct me if I'm wrong, but that would make it a partitioned drive.

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  • StarterSTS 1.5

    - by Your DisplayName here!
    I have the 1.5 version of StarterSTS sitting here for quite some time now. But I was always reluctant to release it. Some of the reasons are: too many new features for a single (small) version change. to many features that are optional, like bridged authentication and thus make the code very complex. the way I implemented Azure integration adds a dependency on the Azure SDK, even for “on-premise” installations. I don’t like that. the fact I am using some WebForms bits and some WCF bits, the URL structure got messy. WebForms also don’t help a lot in testability All of the above reasons together plus the fact that I am the only architect, developer and tester on this project made me come to the conclusion that I will cancel this release. But wait… StarterSTS 1.5 is fully functional. We use both the on-premise and Azure versions internally “in production”. Cancelling means I will release the latest source code on Codeplex – but will not mark it as a “recommended release”. I also won’t produce updated screen casts and docs. Bu the setup is very similar to earlier versions. Feel free to use and customize 1.5 and give me feedback. On the good news front, I am working on a new version – welcome thinktecture IdentityServer. This version is based on MVC3 and the routing architecture, removed a lot of the clutter, has a SQL CE4 based configuration system, is more extensible – and in overall just cleaner. I will be able to upload CTPs very soon.

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  • Character creation using spritesheets

    - by Patrick Developer
    I am currently creating a 2D fighting game and have implemented a system where upon starting a new game, the player is presented with the option to create a custom character. I have a set of string arrays set with values that correspond to hair, headgear, chest, lower body and shoes. When done selecting a variety of items from the lists, a code is generated based off the index of each item (i.e 01123), which is then used to assign the correct Spritesheet to the player character. This has already presented a lot of work as I have had to create quite a few spreadsheets based of possible combinations, but I am now looking at a massive amount of work to implement each variation. I have started to look into setting layers for each item to reduce workload, but I am also looking at having different stances for the character - Depending on the currently equipped weapon - so this may present a lot of work either way. My question is, do I have any alternatives or am I stuck creating masses of Spritesheets to cover all combinations? As a side note, how much impact will assigning layered items have on overall performance?

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  • A Generic RIDC Test Program

    - by Kevin Smith
    Many times I have found it useful to use a java program that communicates with WebCenter Content (WCC) using RIDC for testing. I might not have access to the web GUI or need to test a service running as a specific user. In the past I had created a number of "one off" programs that submitted specific services, e.g GET_SEARCH_RESULTS, DOCINFO, etc. Recently I decided to create a generic RIDC test program that could submit any service with the desired parameters based on a configuration file. The programs gets the following information from the configuration file: WCC connection information (host, port) User to use to run service Service to run Any parameters for the service The program will make a connection to the WCC server, send the service request, and print the results of the service call using the getResponseAsString() method. Here is a sample configuration file: ridc.host=localhostridc.port=4444ridc.user=sysadminridc.idcservice=GET_SEARCH_RESULTSidcservice.QueryText=dDocType <matches> `Document`idcservice.SortField=dDocNameidcservice.SortDesc=ASC There is a readme file included in the zip with instructions for how to configure and run the program. The program takes one command line argument, the configuration file name. The configuration file name is optional and defaults to config.properties. If you have any suggestions for improvements let me know. Right now it only submits a single service call each time you run it. One enhancement I have already thought about would be to allow you to specify multiple services to tun in the configuration file. You can do that with the current program by having multiple configuration files and running the program multiple times, each with a different configuration file. You can download the program here.

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  • URL redirect to a virtual server on a VLAN

    - by zeroFiG
    I have a production site, running off 10 servers. I've been given another virtual server on the same network as these 10 servers, to use for testing purposes. This server doesn't have it's own DNS entry. Therefore I need to do a redirect to the site hosted on this virtual server for a sub-domain of the site running on the 10 other servers. So Basically I was wondering how I would configure a sub domain of my production server to point at the Virtual server for testing. I'm guessing I need to modify my site file in /etc/apache2/sites-available and add another virtual host like the following and modify the redirect match: <VirtualHost *> ServerName SUBDOMAIN.DOMAIN.com RedirectMatch 301 (.*) **IP ADDRESS** CustomLog /var/log/apache2/SUBDOMAIN.DOMAIN.com.access.log combined </VirtualHost> Do I set the redirect match to just the IP on the Virtual server, and then configure another site file in the sites-available directory, which will recption this redirect and point the browser towards the HTML root? Thanks, I hope I made myself clear.

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  • Security in Robots and Automated Systems

    - by Roger Brinkley
    Alex Dropplinger posted a Freescale blog on Securing Robotics and Automated Systems where she asks the question,“How should we secure robotics and automated systems?”.My first thought on this was duh, make sure your robot is running Java. Java's built-in services for authentication, authorization, encryption/confidentiality, and the like can be leveraged and benefit robotic or autonomous implementations. Leveraging these built-in services and pluggable encryption models of Java makes adding security to an exist bot implementation much easier. But then I thought I should ask an expert on robotics so I fired the question off to Paul Perrone of Perrone Robotics. Paul's build automated vehicles and other forms of embedded devices like auto monitoring of commercial vehicles on highways.He says that most of the works that robots do now are autonomous so it isn't a problem in the short term. But long term projects like collision avoidance technology in automobiles are going to require it.Some of the work he's doing with his Java-based MAX, set of software building blocks containing a wide range of low level and higher level software modules that developers can use to build simple to complex robot and automation applications faster and cheaper, already provide some support for JAUS compliance and because their based on Java, access to standards based security APIs.But, as Paul explained to me, "the bottom line is…it depends on the criticality level of the bot, it's network connectivity, and whether or not a standards compliance is required."

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  • I need advice on laptop purchase for university [closed]

    - by Systemic33
    I'm currently in University studying Computer Science/IT/Information Technology. And this first year i've managed to do with the laptop I had; an ASUS Eee PC 1000H with a 10.1" screen. But this is getting way too underpowered and small for programming more than just quick programming introduction excercises. So I'm looking to buy a more suitable laptop. It's not supposed to be a desktop replacement though, since I've got a pretty good desktop already with a 24" monitor. So the kinda laptop I want to buy is one suited for university. If this bears any significance, I'm working in Java atm, but I will likely work with lots of other things incl. web development. I'm looking to spend about $1700 plus/minus. And it should be powerful/big enough for working on programming projects as well as the usual university stuff like MATLAB, Maple, etc out "in the field", and sometimes for maybe a week when visiting my parents. What I'm looking at right now is the ASUS Zenbook UX31A with the 1920 x 1080 resolution on 13.3" IPS display. But I'm kinda nervous that this will be too petite for programming. In essence i'm looking for a powerfull computer, that has good enough battery, and looks good. I would love suggestions or any type of feedback, either with maybe a better choice, or input on how its like programming on 13" laptops. Very much thanks in advance for anyone who even went through all that! PS. I don't want a mac, or my inner karma would commit Seppuku xD But experiences from working on the 13" Macbook Air would kinda be equivalent to the Zenbook i'm considering, so I would love to hear that. tl;dr The quick brown fox jumps over the lazy dog ;)

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  • Playing 3D mkv on 3D TV

    - by user137713
    I just bought a brand new LG 42LW4500 TV with enabled 3D think its passive any how i have an option to convert 2D 3D i also got a full set of normal 3D Glases. Now today i downloaded a 3D movie (14GB) Full HD in a mkv format i hooked up my PC to my TV and opened the mkv in VLC player and what i got was 2 pictures in one screen sowing same thing. Now i am lost from here i enabled 3D but it didnt really feel like 3D. Can anyone shed some ligth on how can you play 3D movies do i need to use 2D 3D conversion on tv or?

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  • Windows XP waits for usb drive on almost every operation.

    - by Tomasz Kowalczyk
    Hello everyone, I have a problem with my Windows XP operating system, particularly with the USB device that is plugged in - 1TB WD My Book external drive. I haven't found any information about such behaviour when searching in Internet, so I have to ask You. The problem is: when I am using computer, especially during work (programming), when I try to access any information on a hard disk ("internal" one), Windows seems to "consult" it with the external drive. For example, when I open file selection dialog window, if I try to change directory, system activates external drive, reads something (I hear the disk's operational noise) and after some seconds of such pause it makes the operations I requested. There are many situations in which I can reproduce this behavior - opening My Computer, shutting down system, opening partition folder from My Computer - every operation involves the usage of external drive. Please understand me properly - this is not something that happens EVERY time, but at least "many" times a day. What causes such behavior and how can I "turn off" external drive when it's not needed? Thanks in advance for your answers.

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  • How to prevent multiple playing sounds from destroying your hearing?

    - by Rookie
    The problem is that when I play 100 sounds almost at same time, all I hear is noise. It's not very attractive to listen it for 30 minutes straight. I tried to fix this by allowing only 1 sound of each sound type to be played at once. But it still sounds really ugly; eventually my brain keeps hearing only the very end of the shot sounds (or the start of it?), and that gets on my nerves really quickly. Eventually I would just decide to turn off the sounds completely. So is there any point of using sounds in a game like this at all? How does our dear reality handle this problem? If there is a war out there, how does it sound when hundred of men shoot almost at the same times? Edit: Here is how the game sounds currently; there isn't even 100 sounds playing at once, maybe 20? http://www.speedyshare.com/VTBDw/headache.mp3 At the beginning it sounds OK, but then it becomes unbearable! In that audio clip there is allowed only 1 sound to be played at once, so it will stop the previous playing sound when new sound is played. Edit2: And here is same headache but 32 simultaneous sounds allowed to be played at same time: http://www.speedyshare.com/TuWAR/headache-worse.mp3 Quite a torture, eh?

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  • Diablo 3 "freezes" periodically

    - by Shauna
    I'm running Diablo 3 (start edition, digital download) on the following: Ubuntu 12.04 64-bit (stock Unity, Gnome, etc; kernel version 3.2.0-29-generic) Wine version 1.5.11 (base, from Wine's PPA, game started with setarch i386 -3) Intel i7 920 CPU nVidia GTX260 with driver version 295.49 ("post-release updates" entry within the proprietary drivers tool), dual monitors 6GB RAM Every so often (and what appears to be at random), the game video will freeze up. I can still move the mouse, and it reacts to ctrl+alt+f2 to drop into text mode, but I can't get back to the desktop (which means I can check terminal to see what's going on after launching from terminal, especially since even in windowed mode, the secondary screen gets shut off by the game), and I can't continue to play the game. In order to get it running again, I have to restart lightdm, then relaunch the game (or, in a couple of rare cases, I had to restart the computer entirely, because running sudo service lightdmn [stop/start] doesn't appear to react). Turning down the video settings seems to have helped in some cases, but not all of them. Times it's frozen on me: The beginning of The Fallen Start quest part 6 - kill the Wretched Mother, right as you walk out of New Tristram and engage in the monsters on the northern path (repeatedly froze here until I adjusted the graphics down) Within the cinematic/event upon finding Deckard Cain While fighting the skeletons to protect Deckard Cain When about to enter Leoric's passage after Cain sends you back to where you found him That's as far as I've gotten through the game so far. Additionally, this doesn't happen on other games I play and seems to only occur with Diablo 3. Has anyone else run into this issue and know a possible cause or fix, or at least know where I can look (and what to look for) to figure out why this is happening?

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  • Two people using the same computer at the same time remotely!

    - by Mani
    We have two computer in office and two people. My computer is much more faster than another computer. Is it possible my colleague connect to my computer remotely and work by my computer? Using "Remote Desktop" in Windows only one user can log into computer. So when he connect remotely, my user logged off. Is there a tool which can help in this case? I already knew VNC (RealVNC) But it's not helping because when a user connect to my computer, he see exactly my desktop, not his own user desktop.

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  • Improve Customer Experience with Real-Time Scheduling

    - by ruth.donohue
    Recently, my husband rearranged his busy work schedule so that he could stay home an entire afternoon to wait for the alarm company to reset the password to our alarm system, only to discover at the end of the afternoon that the field service rep wasn’t going to be able to make the appointment after all. And, the company asked him to reschedule and block off time for another afternoon. Needless to say, my husband wasn’t happy with that experience. Unfortunately, customer experiences like this happen every day. As a business, you can’t afford these types of encounters. It’s too easy for your customers to turn to one of your competitors once they’ve reached the point of frustration. Customer experience and customer loyalty are more important than ever. So how can you prevent something like this from occurring? With the newly available Siebel Field Service Integration with Oracle Real-Time Scheduler, your service organization can: Create cost-optimized plans and schedules to improve operating efficiencies Deliver more accurate ETA’s and shorten appointment windows Minimize the impact of in-day events such as delays on site, sickness, poor weather conditions, and vehicle breakdowns Rather than requiring them to wait for an entire afternoon, imagine asking customers to be available for only an hour. And being able to commit to that time by working around unforeseen events and understanding the impact of delays or re-routings before they become customer issues. What would your customer experience and customer satisfaction be like then? Learn more about the Siebel Field Service Integration with Oracle Real-Time Scheduler: Register for and attend the upcoming webcast on Thursday, March 10th at 8:30 AM Pacific Time Read the press release, data sheet, and solution brief Visit the Siebel Field Service webpage

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  • MacBook: Can't boot into Linux partition after installation.

    - by Otto
    Hello I just installed Ubuntu. I created a partition in MacOSx using Disk utility, then deleted the partition and installed Ubuntu on the free space created. After the installation, Ubuntu said it would reboot. I hang on shutdown (which is normal, as google told me), so I used the power button to turn the MacBook off. Now I want to boot into Ubuntu. Pressing option/alt on startup only shows me the MacOSx and Windows partition. Also, the Linux partition isn't showing up on my MacOSx desktop. And in Disk Utility, I can see 3 grayed out partitions: "disk0s4", "disk0s5" and "Linux Swap". What can I do to boot into Ubuntu without losing my other partitions? Thank you for your help.

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  • DDD and Value Objects. Are mutable Value Objects a good candidate for Non Aggr. Root Entity?

    - by Tony
    Here is a little problem Have an entity, with a value object. Not a problem. I replace a value object for a new one, then nhibernate inserts the new value and orphan the old one, then deletes it. Ok, that's a problem. Insured is my entity in my domain. He has a collection of Addresses (value objects). One of the addresses is the MailingAddress. When we want to update the mailing address, let's say zipcode was wrong, following Mr. Evans doctrine, we must replace the old object for a new one since it's immutable (a value object right?). But we don't want to delete the row thou, because that address's PK is a FK in a MailingHistory table. So, following Mr. Evans doctrine, we are pretty much screwed here. Unless i make my addressses Entities, so i don't have to "replace" it, and simply update its zipcode member, like the old good days. What would you suggest me in this case? The way i see it, ValueObjects are only useful when you want to encapsulate a group of database table's columns (component in nhibernate). Everything that has a persistence id in the database, is better off to make it an Entity (not necessarily an aggregate root) so you can update its members without recreating the whole object graph, specially if that's a deep-nested object. Do you concur? Is it allowed by Mr. Evans to have a mutable value object? Or is a mutable value object a candidate for an Entity? Thanks

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  • Are there any "best practices" on cross-device development?

    - by vstrien
    Developing for smartphones in the way the industry is currently doing is relatively new. Of course, there has been enterprise-level mobile development for several decades. The platforms have changed, however. Think of: from stylus-input to touch-input (different screen res, different control layout etc.) new ways of handling multi-tasking on mobile platforms (e.g. WP7's "tombstoning") The way these platforms work aren't totally new (iPhone has been around for quite awhile now for example), but at the moment when developing a functionally equal application for both desktop and smartphone it comes down to developing two applications from ground up. Especially with the birth of Windows Phone with the .NET-platform on board and using Silverlight as UI-language, it's becoming appealing to promote the re-use of (parts of the UI). Still, it's fairly obvious that the needs of an application on a smartphone (or tablet) are very different compared to the needs of a desktop application. An (almost) one-on-one conversion will therefore be impossible. My question: are there "best practices", pitfalls etc. documented about developing "cross-device" applications (for example, developing an app for both the desktop and the smartphone/tablet)? I've been looking at weblogs, scientific papers and more for a week or so, but what I've found so far is only about "migratory interfaces".

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