Search Results

Search found 14292 results on 572 pages for 'high integrity systems'.

Page 382/572 | < Previous Page | 378 379 380 381 382 383 384 385 386 387 388 389  | Next Page >

• What is best way to update digital certificates from server to many clients when certificate expires

  - by pramodc84

  One of my friend is working on issue related to updating expired digital certificates. He is working on Java application(Swings I guess), which has 4000 clients. All those need a digital certificate to connect to the application and this certificate expires every year. At the end of year he needs to update the certificate credentials for all clients. Currently this is manual process, done by connecting to each of 4000 systems either locally or by remote connection. He is got task to convert this process to be an automated process. Please suggest some solutions.

  Read the article

• Scrollbar within a scrollbar only make the inner scrollbar jump to id

  - by Nik

  I have a page that requires a scrollbar - http://www.aus-media.com/dev/site_BYJ/schedule-pricing/pricing.html You will notice (unless you are running at a high resolution with a big screen) that there is an outer scrollbar for the main page as well as an inner scrollbar for the content. When you click on one of the sub items e.g. payments you will notice that the outer page scrolls down as well as the inner scrollbar. Does anybody know of a way to only scroll the inner scrollbar, so only it jumps to the id? Thanks guys Nik

  Read the article

• Benchmark for a .NET WinPcap wrapper

  - by brickner

  I'm developing a .NET wrapper for WinPcap called Pcap.Net. I'm trying to make sure this wrapper has high performance and I want to compare it to WinPcap and to other .net wrappers for WinPcap. The features I want to profile are: WinPcap native features (sending packets in different ways, receiving packets in different ways...) Interpreting packets that Pcap.Net knows how to interpret (like Etherent, IPv4, UDP, TCP, ICMP, ...) Building packet that Pcap.Net knows how to build (the same types it knows how to interpret). I also want to be able to profile the benchmark using Visual Studio 2010 Ultimate profiling tools. My question is: What should my benchmark exactly do to cover these issues and how would you suggest to build it?

  Read the article

• What should a Java/SOA developer be able to do?

  - by Regular Joe

  Hello community. I got assigned the task to list the activities a Java Developer should be able to perform and create an estimate about the time it would take. I've came up with the following: S = Small complexity M = Medium complexity H = High complexity 1d = 1 day Create JDBC CRUD backend ( S=1d, M=5d, H=10d ) Create JSP/Servlet frontend for a CRUD app ( S=1d, M=10d, H=20d ) Create Swing desktop frontend ( S=1d, M=15d, H=30d) Create ORM based CRUD ... Create Webapp fronend with webframework ... This is thought for a Java "enterprise" developer. The other profile I have is SOA Developer, but I could not pass beyond: Create webservice ( S=.5d, M=2d, H=7d ) Q.- What other activities should a Java Developer be able to do? Q.- What activities should a SOA Developer be able to do? Please, help me with this, I know this is in the limit of the kind of questions that could be asked here, but I really need a little push on this, and I don't want to go to Yahoo Answers for this.

  Read the article

• What useful GDB scripts have you used/written?

  - by nik

  People use gdb on and off for debugging, of course there are lots of other debugging tools across the varied OSes, with and without GUI and, maybe other fancy IDE features. I would like to know what useful gdb scripts you have written and liked. While, I do not mean a dump of commands in a something.gdb file that you source to pull out a bunch of data, if that made your day, go ahead and talk about it. Lets think conditional processing, control loops and functions written for more elegant and refined programming to debug and, maybe even for whitebox testing Things get interesting when you start debugging remote systems (say, over a serial/ethernet interface) And, what if the target is a multi-processor (and, multithreaded) system Let me put a simple case as an example... Say, A script that traversed serially over entries to locate a bad entry in a large hash-table that is implemented on an embedded platform. That helped me debug a broken hash-table once.

  Read the article

• What's your hobby website; do you maintain it for your users or yourself?

  - by Glennular

  What is your hobby website? Do you care if it has high traffic or is it more for personal satisfaction? When deciding on the features to implement are you taking in to consideration the needs of general user-base or features you really want to build? What balance do you use to keep yourself satisfied as well as your users? When do you feel your site is able to release to the world? Do you release it initially and hope for anticipatory beta group? or wait till you have a solid built set of features?

  Read the article

• using Excel VBA, given the daily price of 50 stocks, choose 10 stocks such that they have the minumu

  - by correl

  The high-level goal is to choose 10 stocks that have the lowest correlation among one another, out of a pool of 50, so that I can have a well-diversified portfolio. I have managed to write some VBA macro to download the past 3 years of daily price data from Yahoo finance, and then compute the 50x50 correlation matrix (using the Correl function), using the daily close as the data. What I have tried so far is just some local-maximum heuristic: - For the two stocks that have the highest correlation with each other, remove one of them. Between the two, remove the one that has the higher average correlation with all the other stocks. - When I remove a stock from the pool, I just delete the correponding row and column, to give a smaller matrix. - Repeat until I have just 10 stocks remaining (a 10x10 matrix). I was wondering if there is some algorithm that already solves such a problem and gives the optimum solution?

  Read the article

• WCF VS. Sockets

  - by kite

  Hello, I would like to know which of WCF or .NET Sockets is the more efficient and the more recommended in a game developpment scenario. Here are the different parts of the game : -a client/server communication to play on the internet -peer to peer on local network. I would like to know which technology you would use on these parts (wcf on both, socket on both, wcf on one and socket on the other...) and why, if possible. The game involved doesn't require a high communication frequency (3-4 per second is enough). Thanks, KiTe

  Read the article

• Why does x86 WiX installer on Vista x64 not write keys to WOW6432Node in the registry

  - by Ryan Conrad

  I have an installer that writes to HKLM\Software\DroidExplorer\InstallPath. On any x86 machine it writes just fine to the expected location, on Windows XP x64 and Windows 7 x64 it also writes to the expected location, which is actually HKLM\Software\WOW6432Node\DroidExplorer\InstallPath. Later on during the install, my bootstrapper, which is also x86, attempts to read the value. On all x86 Windows machines it is successful, and on Windows XP x64 and Windows 7 x64, but Windows Vista x64 is unable to locate the key. If I look in the registry, it doesn't actually write it to WOW6432Node on Vista, it writes it to Software\DroidExplorer\InstallPath If I do not forcefully tell the installer to write to WOW6432Node, it writes the value to Software\DroidExplorer\InstallPath, but the bootstrapper still trys to look in WOW6432Node because of the Registry Reflection. This is on all x64 systems. Why is Vista x64 the only one I have this issue with? Is there a way around this?

  Read the article

• public key email encryption

  - by anatak

  Who has their email fully encrypted ? I would like to encrypt my email but I am not sure how to start. If I use encrypted email and I send an email to someone who does not encrypt his email how can the receiver read the email ? What email client would you recommend to run on a windows systems for encrypted email ? I am using Thunderbird at the moment. As I understand you have to generate 2 keys (one public and one private) but how do you generate this key? I also think that you have to put your key somewhere to download but I don't understand how you can trust the downloaded keys. Any links to a good (not too complicated) guide about the working an implementing of email encryption would be very much appreciated. kind regards wim hendrix anatak

  Read the article

• Daubechies-4 Transform in MATLAB

  - by Myx

  Hello: I have a 4x4 matrix which I wish to decompose into 4 frequency bands (LL, HL, LH, HH where L=low, H=high) by using a one-level Daubechies-4 wavelet transform. As a result of the transform, each band should contain 2x2 coefficients. How can I do this in MATLAB? I know that MATLAB has dbaux and dbwavf functions. However, I'm not sure how to use them and I also don't have the wavelet toolbox. Any help is greatly appreciated. Thanks.

  Read the article

• Using a DataSet instead of custom business entities in soa and n-tier architecture

  - by kathy

  I’m working on a large and a high volume transactional enterprise application which has been designed using n-tire application architecture .And it was developed in the .NET platform utilizing C#,VB.NEt, Framework 3.5, ObjectDataSources, DataSet, WCF, asp.net update panel, JavaScript ,JSON, 3rd Party tools. The application is supposed to accomplish a really scalable / easily maintained / robust application / integrations, and to make sure that my services are created using a format that can be understood by other systems. The problem is, this application is about 70% complete but now I was wondering if the following would cause us future issues, I’m using a DataSet and a DataTable to (get /set) the data (form /to) the stored procedure in the database using the ObjectDataSources and was wondering if this would prevent my application from achieving the above goals. Actually, I am not anti-OO. I write lots of classes for different purposes, but I didn’t use the entity objects(custom business entities) instead of the previous way because I have a large database that may contain 50 tables and I was just afraid to create entities for each table and then in the future if I need to change the schema of the database, it might cause a huge affect on the application ?

  Read the article

• Core Data iPad/iPhone BLOBS vs File system for 20k PDFs

  - by jamone

  I'm designing an iPad/iPhone app using core data. The main focus of the app is sorting and viewing up to 20,000 PDFs They are ~200KB each. Typically its best to not store BLOBS in a DB, but for desktop systems I've typically seen it said that if the blobs are < 1 MB then its fine to use the DB. Any considerations I should take into count? If I store them in the file system can I store them all in one directory and not have performance issues (I won't need to ever get a directory list since I'd store each's path in the DB)? Should I divide them among a handful of directories? If so is there a good rule on # of files per dir?

  Read the article

• Virtual Earth / Bing maps javascript file size

  - by Aquinas

  I am working with a site that uses virtual earth for its mapping. Unfortunately the file size of the referenced javascript file, ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2, is 200 something kb before being expanded (to 970kb). As our site runs under https this file is not cached on the client, and can cause a few seconds delay to users, made more substantial in times of high load. My question is, is there anyway to get virtual earth to run smaller, or have more efficient lazy loading? At the moment it looks like our hands are tied.

  Read the article

• calculating the potential effect of inaccurate triangle vertex positions on the triangle edge lenght

  - by stingrey

  i'm not sure how to solve the following problem: i have a triangle with each of the three known vertex positions A,B,C being inaccurate, meaning they can each deviate up to certain known radii rA, rB, rC into arbitrary directions. given such a triangle, i want to calculate how much the difference of two specific edge lengths (for instance the difference between lengths of edge a and edge b) of the triangle may change in the worst case. is there any elegant mathematical solution to this problem? the naive way i thought of is calculating all 360^3 angle combinations and measuring the edge differences for each case, which is a rather high overhead.

  Read the article

• CSS and jQuery slider height/positioning question

  - by wilwaldon

  TEST SITE If you look at the example above the slider on the right has 2 images. The first one is smaller than the second. The second is around 500px high. What I'm looking to do is expand the slider vertically depending on the height of the images inside. I believe the js is setting the height of the image when it is called from the server and I can't find a way to override it with the CSS. Any help would be very appreciated. Thank you!

  Read the article

• How to Implement Loose Coupling with a SOA Architecture

  - by Brian

  I've been doing a lot of research lately about SOA and ESB's etc. I'm working on redesigning some legacy systems at work now and would like to build it with more of a SOA architecture than it currently has. We use these services in about 5 of our websites and one of the biggest problems we have right now with our legacy system is that almost all the time when we make bug fixes or updates we need to re-deploy our 5 websites which can be a quite time consuming process. My goal is to make the interfaces between services loosely coupled so that changes can be made without having to re-deploy all the dependent services and websites. I need the ability to extend an already existing service interface without breaking or updating any of its dependencies. Have any of you encountered this problem before? How did you solve it?

  Read the article

• How to compare 2 similar strings letter by letter and highlight the differences?

  - by PowerUser

  We have 2 databases that should have matching tables. I have an (In-Production) report that compares these fields and displays them to the user in an MS-Access form (continuous form style) for correction. This is all well and good except it can be difficult to find the differences. How can I format these fields to bold/italicize/color the differences? "The lazy dog jumped over a brown fox." "The lazy dog jumped over the brown fox." (It's easier to see the differences between 2 similiar text fields once they are highlighted in some way) "The lazy dog jumped over a brown fox." "The lazy dog jumped over the brown fox. " Since we're talking about a form in MS Access, I don't have high hopes. But I know I'm not the first person to have this problem. Suggestions?

  Read the article

• php gd image quality

  - by apueee

  I 'm trying to add text on a specific image. Its working perfectly but the quality of image is low especially for papyrus.ttf font. How can i improve the quality of text in the image. But i need high quality to print the output. Here is my code.. its very simple. header("Content-Type: image/jpeg"); $im = imagecreatefromjpeg("cosmos.jpg"); $black = ImageColorAllocate($im, 0, 0, 0); Imagettftext($im, 14, 0, 10, 15, $black, 'papyrus.ttf', "Corey and Lisa "); Imagettftext($im, 14, 0, 10, 35, $black, 'papyrus.ttf', " 1994, june"); Imagejpeg($im, '', 100); ImageDestroy($im); Download: http://wneeds.com/gdtest.zip

  Read the article

• Flash files are playing laggy /Jerky in screensaver

  - by yogesh-chhabra

  I have developed a screen saver for MAC OS X. Screen saver plays flash files. Whene I run screen saver on display resolution higher than 1300 X 1000 then flash files play very jerky / laggy. When I run it in low resolution then files play fine.Even flash files are playing fine in desktop application. This problem is more on 10.6 Snow Leopard. I am unable to find out the reason whether it is OS screensaver engine problem or flash files problem. I know rendering increases on high resolution but there should be solution for this problem

  Read the article

• Best practices book for CRUD apps

  - by Kevin L.

  We will soon be designing a new tool to calculate commissions across multiple business units. This new compensation scheme is pretty clever and well thought-out, but the complexity that the implementation will involve will make the Hubble look like a toaster. A significant portion of the programming industry involves CRUD apps; updating insurance data, calculating commissions (Joel included) ...even storing questions and answers for a programmer Q&A site. We as programmers have Code Complete for the low-level formatting/style and Design Patterns for high-level architecture (to name just a few). Where’s the comparable book that teaches best practices for CRUD?

  Read the article

• May a NSManagedObjectContext re-fault objects automatically?

  - by frenetisch applaudierend

  I am trying to create an application which allows background threads to update core data objects while the user might be reading the same data. My approach to this would be to use multiple NSManagedObjectContexts and then before a background thread does a -save: operation, I fetch the object the user is currently working on and fire the fault for all its properties and relationships recursively. This way I have all objects the user could act with in my NSManagedObjectContext without seeing the already updated values. But this can only work if the NSManagedObjectContext cannot decide himself that e.g. memory usage is too high, and starts faulting objects which I do not explicitly reference (other than through the NSManagedObject relationship). So the question is, can the NSManagedObjectContext decide that an object needs to be re-faulted, without intervention from my side? Thanks for your effort, Markus

  Read the article

• How to get users to read error messages?

  - by FX

  If you program for a nontechnical audience, you find yourself at a high risk that users will not read your carefully worded and enlightening error messages, but just click on the first button available with a shrug of frustration. So, I'm wondering what good practices you can recommend to help users actually read your error message, instead of simply waiving it aside. Ideas I can think of would fall along the lines of: Formatting of course help; maybe a simple, short message, with a "learn more" button that leads to the longer, more detailed error message Have all error messages link to some section of the user guide (somewhat difficult to achieve) Just don't issue error messages, simply refuse to perform the task (a somewhat "Apple" way of handling user input) Edit: the audience I have in mind is a rather broad user base that doesn't use the software too often and is not captive (i.e., not an in-house software or narrow community). A more generic form of this question was asked on slashdot, so you may want to check there for some of the answers.

  Read the article

• Good Economics book for developers

  - by Rocket Surgeon

  Joel mentions in several of his blog posts that it is very important for a developer/software entrepreneur to have solid understanding of Economics. Yet the Fog Creek MBA book reading list does not include any Economics books. Is there any good material that people can recommend? Obviously, I am not as concerned about mathematical treatise as foundations and basic principles. For example, I was able to find a very good high-level read on Macroeconomics: Concise Guide to Macroeconomics but I am yet to find anything similar on Microeconomics. Any suggestions and reading pointers would be highly appreciated.

  Read the article

• Performance of DrawingVisual vs Canvas.OnRender for lots of constantly changing shapes

  - by romkyns

  I'm working on a game-like app which has up to a thousand shapes (ellipses and lines) that constantly change at 60fps. Having read an excellent article on rendering many moving shapes, I implemented this using a custom Canvas descendant that overrides OnRender to do the drawing via a DrawingContext. The performance is quite reasonable, although the CPU usage stays high. However, the article suggests that the most efficient approach for constantly moving shapes is to use lots of DrawingVisual instances instead of OnRender. Unfortunately though it doesn't explain why that should be faster for this scenario. Changing the implementation in this way is not a small effort, so I'd like to understand the reasons and whether they are applicable to me before deciding to make the switch. Why could the DrawingVisual approach result in lower CPU usage than the OnRender approach in this scenario?

  Read the article

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