Search Results

Search found 26695 results on 1068 pages for 'domain driven design'.

Page 112/1068 | < Previous Page | 108 109 110 111 112 113 114 115 116 117 118 119  | Next Page >

  • Unit testing newbie team needs to unit test

    - by Walter
    I'm working with a new team that has historically not done ANY unit testing. My goal is for the team to eventually employ TDD (Test Driven Development) as their natural process. But since TDD is such a radical mind shift for a non-unit testing team I thought I would just start off with writing unit tests after coding. Has anyone been in a similar situation? What's an effective way to get a team to be comfortable with TDD when they've not done any unit testing? Does it make sense to do this in a couple of steps? Or should we dive right in and face all the growing pains at once?? EDIT Just for clarification, there is no one on the team (other than myself) who has ANY unit testing exposure/experience. And we are planning on using the unit testing functionality built into Visual Studio.

    Read the article

  • How can story and gameplay be artfully merged?

    - by NauticalMile
    Let me give some context. Three of my friends and I have a pretty good game idea cooking. It's based off of a prototype I made that's evolving into a cool game mechanic. The mechanic itself is a toy that's fun on its own, but we haven't designed any puzzles around it yet. We have a design document going, and we are answering a lot of questions about what's in the game. It's become clear early on that everyone (including myself) likes the characters and the story a lot. Considering what our favorite games are, this is unsurprising. A story driven game makes sense to me. I like the emphasis that Paper Mario: The Thousand-Year-Door, Portal 2, and Tomb Raider place on story, and I imagine our game will have a similar feel (lots of dialogue, plot twists, lovable characters). However, one team member raised this point in the design doc: I am feeling like [fleshing out the story] is our biggest hurdle right now for making more design decisions - like more specific decisions about levels etc. Is this true? I am uncertain about working on the story extensively before gameplay, and my uneasiness was reinforced when I read this question about story vs. gameplay. What I want to say is: "Let's continue to work on the story, but also start brainstorming and prototyping abstract puzzles and combat sequences, and we'll creatively match them together later." Is this a reasonable approach? If so, how much of the development of these elements should be done independently? Should I try and create a whole bunch of puzzles while my other teammates focus on story and aesthetics? Then when we have a lot of story and game 'chunks' we can match them with eachother to build something meaningful. Or should we focus on iterating individual levels as distinct units where puzzles, story, etc... are designed together? Or maybe we need to put our excitement about the story on hold and just focus on gameplay. Is there another approach to design that we can take? Am I missing something crucial? I have discussed story and gameplay because they seem the most likely to be at odds with each other, but we also have to consider user interface, music, art direction, etc... Can we design these independently as well?

    Read the article

  • Subdomains on WampServer

    - by MohamedKadri
    Hello, I'm working on WampServer for development, I've set up the domain tuniguide.local and it works fine with this configuration: DocumentRoot "D:\www\tuniguide" ServerName tuniguide.local But when I wanted to add a subdomain fr.tuniguide.local I get a 404 Not Found with this configuration: DocumentRoot "D:\www\tuniguide\fr" ServerName fr.tuniguide.local It gives me this message: The requested URL /www/tuniguide/index.php was not found on this server. Is there someting that I missed? Thanks.

    Read the article

  • Need help starting with DSL for charts/graphs

    - by Rex M
    I am unaware of any established work into Domain Specific Languages for describing charts / graphs. I am looking for specific answers of "yes, something like that exists (here)". To help be clear, in case I am possibly using the wrong verbiage to describe it, to me a DSL for charts would most certainly include: A grammar for describing the shape of an expected data set A grammar for describing a pipeline of behaviors that render an output Abstract / high-level enough to be mappable to most tool-specific grammars, such as Excel, Highchart, matplotlib, etc.

    Read the article

  • Can a registrar outage affect my website?

    - by Harry Muscle
    If my registrar has an outage and their servers go down for a while, will that affect my website. I'm not using any of my registrar hosting packages or name servers, I simply have a few domain names registered with them that point to my actual hosting provider. Based on my current understanding on how these things work I believe that an outage at my registrar will not affect my websites at all, but I'd like to hear this from someone with more experience in this field.

    Read the article

  • Does anyone know anything about .com.au domains?

    - by Paul
    I have a website that allows people to search for instructors. It's currently working in the USA and UK. I'm wanting to start marketing the website to the Australian market, and so have been looking at registering a .com.au domain name. What is the best way about doin this as it doesn't seem particularly simple? Apparently I need an ABN or an Australian company but as I'm not an Australian citizen this presumably would be impossible?

    Read the article

  • What is required to register .com.au domains?

    - by Paul
    I have a website that allows people to search for instructors. It's currently working in the USA and UK. I'm wanting to start marketing the website to the Australian market, and so have been looking at registering a .com.au domain name. What is the best way about doin this as it doesn't seem particularly simple? Apparently I need an ABN or an Australian company but as I'm not an Australian citizen this presumably would be impossible?

    Read the article

  • Why can't I use SSL certs imported via Server Admin in a custom Apache install?

    - by morgant
    I've got a couple of Mac OS X 10.6.8 Server web servers that run a custom AMP255 (Apache 2.x, MySQL 5.x, and PHP 5.x) stack installed using MacPorts. We've got a lot of Mac OS X Server servers and generally install SSL certs via Server Admin and they "just work" in the built-in services, however, these web servers have always had SSL certs installed in a non-standard location and used only for Apache. Long story short, we're trying to standardize this part of our administration and install certs via Server Admin, but have run into the following issue: when the certs are installed via Server Admin and referenced in our Apache conf files, Apache then prompts for a password upon trying to start. It does not seem to be any password we know, certainly not the admin or keychain passwords! We've added the _www user to the certusers (mainly just to ensure they have the proper access to the private key in /etc/certificates/). So, with the custom installed certs we have the following files (basically just pasted in from the company we purchase our certs from): -rw-r--r-- 1 root admin 1395 Apr 10 11:22 *.domain.tld.ca -rw-r--r-- 1 root admin 1656 Apr 10 11:21 *.domain.tld.cert -rw-r--r-- 1 root admin 1680 Apr 10 11:22 *.domain.tld.key And the following in the VirtualHost in /opt/local/apache2/conf/extra/httpd-ssl.conf: SSLCertificateFile /path/to/certs/*.domain.tld.cert SSLCertificateKeyFile /path/to/certs/*.domain.tld.key SSLCACertificateFile /path/to/certs/*.domain.tld.ca This setup functions normally. If we use the certs installed via Server Admin, which both Server Admin & Keychain Assistant show as valid, they're installed in /etc/certificates/ as follows: -rw-r--r-- 1 root wheel 1655 Apr 9 13:44 *.domain.tld.SOMELONGHASH.cert.pem -rw-r--r-- 1 root wheel 4266 Apr 9 13:44 *.domain.tld.SOMELONGHASH.chain.pem -rw-r----- 1 root certusers 3406 Apr 9 13:44 *.domain.tld.SOMELONGHASH.concat.pem -rw-r----- 1 root certusers 1751 Apr 9 13:44 *.domain.tld.SOMELONGHASH.key.pem And if we replace the aforementioned lines in our httpd-ssl.conf with the following: SSLCertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.cert.pem SSLCertificateKeyFile /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem SSLCertificateChainFile /etc/certificates/*.domain.tld.SOMELONGHASH.chain.pem This prompts for the unknown password. I have also tried httpd-ssl.conf configured as follows: SSLCertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.cert.pem SSLCertificateKeyFile /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem SSLCertificateChainFile /etc/certificates/*.domain.tld.SOMELONGHASH.concat.pem And as: SSLCertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.cert.pem SSLCertificateKeyFile /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem SSLCACertificateFile /etc/certificates/*.domain.tld.SOMELONGHASH.chain.pem We've verified that the certificate is configured to allow all applications access it (in Keychain Assistant). A diff of the /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem & *.domain.tld.key files shows the former is encrypted and the latter is not, so we're assuming that Server Admin/Keychain Assistant is encrypting them for some reason. I know I can create an unencrypted key file as follows: sudo openssl rsa -in /etc/certificates/*.domain.tld.SOMELONGHASH.key.pem -out /etc/certificates/*.domain.tld.SOMELONGHASH.key.no_password.pem But, I can't do that without entering the password. I thought maybe I could export an unencrypted copy of the key from Keychain Admin, but I'm not seeing such an option (not to mention that the .pem options are greyed out in all export options). Any assistance would be greatly appreciated.

    Read the article

  • Single domain name potentially resolving to multiple servers

    - by Jace
    first time here at Server Fault, and I apologize in advance that this domain stuff is not really my strength. Any and all suggestions are much appreciated. I am completely lost and incredibly tired! I've inherited an incredibly convoluted system from my predecessor, and I'm trying to find a way to solve it - or I need to be told that it just isn't possible. I've got an old site on ServerA (some kind of Linux distribution), with the domain SomeDomain.com There is a new site sitting on ServerB (Ubuntu), with the intention of having SomeDomain.com to serve it in the future (it is replacing the old site) ServerA also has a web app that is currently in use by other departments within the company (accessible at SomeDomain.com/web-app/) The goal: To have SomeDomain.com and all extensions of this domain name (sub-domains, URL's etc.) serve the new site on ServerB. BUT, the URL SomeDomain.com/web-app/ must serve the Web App on ServerA. The Catch: The ServerA is a shared server with a hosting company with VERY limiting restrictions in place - I cannot adjust DNS settings (apart from Name servers - but cannot set A records or anything, I have full access to ServerB to do as I wish). Therefore the web-app MUST be served from SomeDomain.com/web-app/ and not from a sub-domain or anything. These limitations make migrating the web-app from Server A to Server B rather undesirable, AND this web-app will be replaced in the near future, so it isn't worth the effort right now. Therefore, ultimately I will want 1 domain name to resolve to Server B's IP address most of the time, but in the event that the URL is SomeDomain.com/web-app/, it should resolve to Server A's IP. Note: The domain names don't, technically, have to resolve to one IP or another - but ultimately the URL's must stay consistent Some things I have tried: I've looked into mod_rewrite and .htaccess to try and achieve this effect, but it doesn't look like it's going to work for me - but I may have done it wrong (On Server B, I just checked if the request URI was /web-app/ and tried to serve the /web-app/ folder on Server A) I do have the ability to modify the name servers on both servers I am not able to make a sub domain on Server A that points back to Server A (I assume because the hosting company's servers use the URL to determine what site the serve). I figured this could be good as I'd could set an A record on Server B to point to the web app on Server A - but alas, Server A requires SomeDomain.com. If there is any more information I can give, please let me know. I need a nudge in the right direction, ideas or a solution.

    Read the article

  • Google indexing and ranking a custom domain served by Google App Engine

    - by Hugues
    I have a website served on the following URL : "http://www.plugimmo.com" which is a custom domain served by Google App Engine on the following URL : http://plugimmo.appspot.com Since a while I have tried to optimise the Google indexing and ranking with no success. The problem is that searching on Google the keywords in the title of my home page does not retrieve my website at all even not in the 1,000 first results : When checking the cached version of google ( cache:www.plugimmo.com), it says that the cached version is the one of 20-Aug-12 of "plugimmo.appspot.com". It looks there are several issues : 1 - The cached version is really old. I have made a lot of changes since the 20-Aug-12 and I saw the googlebot crawling my site several times. 2 - The cached version is for "plugimmo.appspot.com" 3 - When looking at the Google Webmaster tools, I see that the number of pages indexed for www.plugimmo.com is 0, but that can't be the case given the number of changes I made since then. My questions would therefore be the following : Why is the version of the cache so old although I saw the googlebot crawling the site many times since 20-Aug-12 ? Is there a problem with indexing a custom domain served by Google App Engine ? Why is the Google Webmaster tools showing 0 pages indexed although new pages have been crawled and that no errors have been reported in the indexing ? Also, the site has been developed with Google Web Toolkit. I have followed the guidelines regarding crawling Ajax sites. The home page when crawled by a robot is redirected to http://www.plugimmo.com/HomeSnapshot.html Thanks a lot for your help ! Hugues

    Read the article

  • shared hosting: ssl domain receives all server's ssl requests, google gets it wrong

    - by pixeline
    This website is hosted on a shared server. I've recently had my hosting provider secure our website using SSL (https://domain.com instead of http://domain.com). Ever since then, all https requests sent to the server are redirected to my website. https://otherdomain.com leads to a warning, then, if you continue, to my website. Ok, my fault, i should have known SSL means 1 IP, otherwise, this thing can happen. But... Google Search results for my website's target keywords is now displaying these websites above my own, even though they have nothing even remotely related to the target keywords! already done: provide canonical url in the html page. told the problem to the server manager, who tells me it's normal but he'll look for a solution. This was one week ago, no answer since. I have no idea why Google is providing these https urls: i thought someone would have to submit them, or have them inside an html page in order for Google to actually index dummy https domains, but i see no reason why someone would do that. Any suggestion on how to solve this situation? Golive is in one week and SEO looks really bad because of that.

    Read the article

  • Android Design - Service vs Thread for Networking

    - by Nevyn
    I am writing an Android app, finally (yay me) and for this app I need persistant, but user closeable, network sockets (yes, more than one). I decided to try my hand at writing my own version of an IRC Client. My design issue however, is I'm not sure how to run the Socket connectivity itself. If I put the sockets at the Activity level, they keeps getting closed shortly after the Activity becomes non-visible (also a problem that needs solving...but I think i figured that one out)...but if I run a "connectivity service", I need to find out if I can have multiple instances of it running (the service, that is...one per server/socket). Either that or a I need a way to Thread the sockets themselves and have multiple threads running that I can still communicate with directly (ID system of some sort). Thus the question: Is it a 'better', or at least more "proper" design pattern, to put the Socket and networking in a service, and have the Activities consume said service...or should I tie the sockets directly to some Threaded Process owned by the UI Activity and not bother with the service implementation at all? I do know better than to put the networking directly on the UI thread, but that's as far as I've managed to get.

    Read the article

  • Design and Print Your Own Christmas Cards in MS Word, Part 1

    - by Eric Z Goodnight
    Looking for a  little DIY fun this holiday season? Open up familiar tool MS Word and create simple, beautiful Christmas and Holiday cards, and impress your family with your crafting skills. This is the first part of a two part article. In this first section, we’ll tackle design in MS Word. In our second, we’ll cover supplies and proper printing methods to get a great look out of your dusty old inkjet. Latest Features How-To Geek ETC The How-To Geek Guide to Learning Photoshop, Part 8: Filters Get the Complete Android Guide eBook for Only 99 Cents [Update: Expired] Improve Digital Photography by Calibrating Your Monitor The How-To Geek Guide to Learning Photoshop, Part 7: Design and Typography How to Choose What to Back Up on Your Linux Home Server How To Harmonize Your Dual-Boot Setup for Windows and Ubuntu Hang in There Scrat! – Ice Age Wallpaper How Do You Know When You’ve Passed Geek and Headed to Nerd? On The Tip – A Lamborghini Theme for Chrome and Iron What if Wile E. Coyote and the Road Runner were Human? [Video] Peaceful Winter Cabin Wallpaper Store Tabs for Later Viewing in Opera with Tab Vault

    Read the article

  • Windows Azure Upgrade Domain

    - by kaleidoscope
    Windows Azure automatically divides your role instances into some “logical” domains called upgrade domains. During upgrade, Azure is updating these domains one by one. This is a by design behavior to avoid nasty situations. Some of the last feature additions and enhancements on the platform was the ability to notify your role instances in case of “environment” changes, like adding or removing being most common. In such case, all your roles get a notification of this change. Imagine if you had 50 or 60 role instances, getting notified all at once and start doing various actions to react to this change. It will be a complete disaster for your service. The way to address this problem is upgrade domains. During upgrade Windows Azure updates them one by one and only the associated role instances to a specific domain get notified of the changes taking place. Only a small number of your role instances will get notified, react and the rest will remain intact providing a seamless upgrade experience and no service disruption or downtime. http://www.kefalidis.me/archive/2009/11/27/windows-azure-ndash-what-is-an-upgrade-domain.aspx   Lokesh, M

    Read the article

  • Design pattern for animation sequence in LibGDX

    - by kevinyu
    What design pattern to use for sequence of animation that involve different actor in libGDX. For example I am making a game to choose a wolf from a group of sheeps. The first animation played when the game begin is the wolf enter the field that is filled with two sheeps.Then the wolf disguise as a sheep and goes to the center of the screen. Then the game will shuffle the sheeps. After it finished it will ask the player where is the wolf. The game wait for player input. After that the game will show animation to show the player whether their answer is right or wrong. I am currently using State design pattern. There are four states wolfEnterState,DisguiseState,ShuffleState,UserInputState, and answerAnimationState. I feel that my code is messy. I use addAction with action sequence and action completion(new Runnable()) a lot. I feel that the action sequence is getting long. Is there a better solution for this kind of problem

    Read the article

  • OO Design, how to model Tonal Harmony?

    - by David
    I have started to write a program in C++ 11 that would analyse chords, scales, and harmony. The biggest problem I am having in my design phase, is that the note 'C' is a note, a type of chord (Cmaj, Cmin, C7, etc), and a type of key (the key of Cmajor, Cminor). The same issue arises with intervals (minor 3rd, major 3rd). I am using a base class, Token, that is the base class for all 'symbols' in the program. so for example: class Token { public: typedef shared_ptr<Token> pointer_type; Token() {} virtual ~Token() {} }; class Command : public Token { public: Command() {} pointer_type execute(); } class Note : public Token; class Triad : public Token; class MajorTriad : public Triad; // CMajorTriad, etc class Key : public Token; class MinorKey : public Key; // Natural Minor, Harmonic minor,etc class Scale : public Token; As you can see, to create all the derived classes (CMajorTriad, C, CMajorScale, CMajorKey, etc) would quickly become ridiculously complex including all the other notes, as well as enharmonics. multiple inheritance would not work, ie: class C : public Note, Triad, Key, Scale class C, cannot be all of these things at the same time. It is contextual, also polymorphing with this will not work (how to determine which super methods to perform? calling every super class constructors should not happen here) Are there any design ideas or suggestions that people have to offer? I have not been able to find anything on google in regards to modelling tonal harmony from an OO perspective. There are just far too many relationships between all the concepts here.

    Read the article

  • In Google Webmaster Tools we have 3 sitemaps attributed to 1 domain

    - by Frank
    Thanks for you advice and help ahead of time I have a website that has been on the internet for almost 10 years created in "Microsoft Frontpage" with over 900 pages. Currently in Google Webmaster tools it shows up as 2 domains and 3 sitemaps: http://www.example.com example.com hostedsitmaps.com Furthermore, since we were having hard to placing the xml sitemap on our site(Frontpage Issues) we decided to hire pro-sitemaps.com to create, host and upload the xml file which they did. Thus, I have another site hostedsitemaps.com on our webmaster tools for the site. Hosted sitemaps shows: 900 urls submitted 800 Indexed. Crawl errors and Search queries: No data available http://www.example.com shows: 889 URLs submitted 1 URLs indexed. Crawl Errors: 14 Soft 404 796 Not found Search Queries: 8104 example.com shows: 889 URLs submitted 1 URLs indexed Crawl errors: 48 Soft 404 91 Not found Search Queries: 8104 My questions and need for help are as followed: 1. Why are our domain based sites in webmaster tools ( example.com and http:www.example.com) showing only 1 URL indexed while the hostedsitemap has 800 indexed? 2. Should we have 3 domains configured for this "one" domain in Google Webmaster tools? 3. Should we eliminate/delete the hostedsitemap from webmaster tools completely and take off that XML sitemap? 4 Does having example.com and http://www.example.com impact web ranking? 5. Any other thoughts or help in this very complicated matter for us. Thanks.

    Read the article

  • URL rewrite and domain frame

    - by Dennis
    I have registered the domain www.posti.sh at nic.sh. The website is on the server www.myskoob.com/postish. Unfortunately, nic.sh does not support frames, i.e. that the domain stays posti.sh as it forwards to www.myskoob.com/postish - so I thought about a URL rewrite on the server. Unfortunately I have no idea how rewriting works - I am thankful for explanations - but I would also like to ask whether this is generally possible. What I need is: The server needs to recognize that the folder postish is accessed Depending on the file that is opened, it needs to rewrite the url to www.posti.sh/<-according filename here- Also, the server needs to understand that a link to www.posti.sh/about.php links to www.myskoob.com/postish/about.php and likewise for other files - at the moment, when I type in posti.sh/about.php it redirects to http://www.myskoob.com/postishabout.php, which does not exist All this should be possible irrespective of whether the url contains a "www" at the beginning or not A plus but not necessary would be that it does not display the .php extensions Would that generally be possible? If not, what would be the alternatives? If anyone knows how to do it, any code and/or way to do it would be much appreciated!

    Read the article

  • Join Domain and Dos App

    - by Austin Lamb
    ok, So First off yes i have read all the related topics and those fixs are either out of date or dont work. i am running ubuntu 12.04 and i would like to add it to the win2008 server network, after i get that done i would like to mount the F:\ drive of the server somewhere on my linux machine where it can be identified as Drive F:\ by wine or Dosemu if i can achieve all of that i need to find out how to run a MS-Dos 16-bit Point-of-sales Graphic program in ubuntu whether that be through wine, dosemu, or dosBox. it does not matter it just has to be able to read and write to the servers F: drive, operate the dos app, and support LPt1 (i think) for printing reciepts and loading tickets. i am a decently knowledgeable windows tech, at least thats what my job description says.. but this is my first encounter with linux in a work environment, it could prove to very experience changing if i can just prove it as a practical theory and a reasonable solution, and get it to work.. the first step is to get it joined to the domain. i have likewise-open CLI and GUI versions, samba, and GADMIN-SAMBA installed in attempts to get any of them to work. any help in any area is greatly appreciated, especially with the domain joining since it is the first step and what i thought would be the easiest step..

    Read the article

  • Hosting several HTTP servers on single domain name

    - by Nakilon
    Several people have got a single domain name server.company.com server, where they are now supposed to host their infrastructure or temporal projects, written in different ways even in different programming languages. How do they divide the domain? Split into subdomains: john.server.company.com, kate.server.company.com, etc. This would need a lot of admins' assistance, time, etc. -- there would be no way for John and Kate to do it themselves. Split into url namespaces: server.company.com/john/, server.company.com/kate/, etc. Pro: They now can make a single welcome page at root with any additional info (if they need?) Con: Each server would need to know their namespace string constant, and hrefs like / whould need patching. Split into ports: server.company.com:8080, server.company.com:8081, etc. and make a single :80 welcome page. Pro: They still can make a single welcome page at :80 Con: ??? I would like to know more pros and cons for 2 and 3 solution.

    Read the article

  • Domain changes required for SSL integration

    - by user131003
    Currently my site supports regular payment options (User is taken to Payment Gateway/PG website). Now I'm trying to implement "seamless" PG integration. I need SSL for this. I'm having a dedicated server with 5 static IPs from Hostgator/HG. options: I take SSL for www.my_domain.com. According to HG, I need to change IP of main site as current IP is not really dedicated as it is being shared by cpanel etc. So They need to bind another dedicated IP to main domain for SSL to work. This would required DNS change for main website and hence cause few hours downtime (which is ok). I've noticed that most of the e-commerce websites are using subdomains like secure.my_domain.com for ssl/https. This sounds like a better approach. But I've got few doubts in this case: a) Would I need to re-register with existing PGs (Paypal, Google Checkout, Authorize.net) if I switch to subdomain? Re-registering is not an option for me. b) Would DNS change be required for www.my_domain.com in this case. This confusion arose because of following reply from HG : "If the sub domain secure.my_domain.com is added to an existing cPanel it will use the IP for that cPanel so as long as it is a Dedicated IP that will be fine. If secure.my_domain.com gets setup as its own cPanel it will need to be assigned to a Dedicated IP which would have a DNS change involved.". Please suggest?

    Read the article

  • Architectural and Design Challenges with SOA

    With all of the hype about service oriented architecture (SOA) primarily through the use of web services, not much has been said about potential issues of using SOA in the design of an application. I am personally a fan of SOA, but it is not the solution for every application. Proper evaluation should be done on all requirements and use cases prior to deciding to go down the SOA road. It is important to consider how your application/service will handle the following perils as it executes. Example Challenges of SOA Network Connectivity Issues Handling Connectivity Issues Longer Processing/Transaction Times How many of us have had issues visiting our favorite web sites from time to time? The same issue will occur when using service based architecture especially if it is implemented using web services. Forcing applications to access services via a network connection introduces a lot of new failure points to the application. Potential failure points include: DNS issues, network hardware issues, remote server issues, and the lack of physical network connections. When network connectivity issues do occur, how are the service clients are implemented is very important. Should the client wait and poll the service until it is accessible again? If so what is the maximum wait time or number of attempts it should retry. Due to the fact of services being distributed across a network automatically increase the responsiveness of client applications due to the fact that processing time must now also include time to send and receive messages from called services. This could add nanoseconds to minutes per each request based on network load and server usage of the service provider. If speed highly desirable quality attribute then I would consider creating components that are hosted where the client application is located. References: Rader, Dave. (2002). Overcoming Web Services Challenges with Smart Design: http://soa.sys-con.com/node/39458

    Read the article

  • Software Design Idea for multi tier architecture

    - by Preyash
    I am currently investigating multi tier architecture design for a web based application in MVC3. I already have an architecture but not sure if its the best I can do in terms of extendability and performance. The current architecure has following components DataTier (Contains EF POCO objects) DomainModel (Contains Domain related objects) Global (Among other common things it contains Repository objects for CRUD to DB) Business Layer (Business Logic and Interaction between Data and Client and CRUD using repository) Web(Client) (which talks to DomainModel and Business but also have its own ViewModels for Create and Edit Views for e.g.) Note: I am using ValueInjector for convering one type of entity to another. (which is proving an overhead in this desing. I really dont like over doing this.) My question is am I having too many tiers in the above architecure? Do I really need domain model? (I think I do when I exposes my Business Logic via WCF to external clients). What is happening is that for a simple database insert it (1) create ViewModel (2) Convert ViewModel to DomainModel for Business to understand (3) Business Convert it to DataModel for Repository and then data comes back in the same order. Few things to consider, I am not looking for a perfect architecure solution as it does not exits. I am looking for something that is scalable. It should resuable (for e.g. using design patterns ,interfaces, inheritance etc.) Each Layers should be easily testable. Any suggestions or comments is much appriciated. Thanks,

    Read the article

  • pros-cons of separate hosting accounts versus using addon domain

    - by hen3ry
    Folks: For historical reasons, I have "Site A" on "Hosting Account A", and "Site B" on "Account B", totally independent accounts with the same vendor, Bluehost. Both are primary domains. Now that Hosting Account B is just about to expire, I'm considering letting it disappear and moving Site B to an Addon domain on "Account A". Both sites are non-commercial, narrow-interest, very-low-traffic, hundreds of page views per month. The file weights for the sites are non-trivial, especially as I like to install specialized CMSs in subdomains. Since Bluehost allows unlimited hosting space there should be no issue with the file load, except I've seen hints of an issue with total file count, maybe 50k files -- which I'm not currently close to hitting, but might eventually. My question: what are the pros and cons of using separate accounts versus hosting Site B as an addon domain? Obviously, using a single account is cheaper by half, and I know that my authoring environment (DreamWeaver CS5) complains when it detects nested source trees, telling me "Synchronization" might fail in such cases, but I don't depend on this feature. What other factors should I consider? TIA

    Read the article

< Previous Page | 108 109 110 111 112 113 114 115 116 117 118 119  | Next Page >