Answer Questions

• megamacy Async or Threading

  I find myself at a point where I must make a decision. I really don't know how to phrase this really well but I will try to the best of my ability. I am writing a client/server app where the server is constantly listening for new connections all the time. Because of this I know I must use either Async programming on the server for listening or I must use threading. Is Async programming more performant than Threading I see alot of people using A ...Show All

• Hienphilly N-tier layer separations and connection/interaction

  I happen to be experimenting based on some examples I've found on the net but I want to be directed to the right path, those samples tend to be incomplete or misleading. In a typical N-tier scenario, which should reference which And is the use of Data Transfer Object in accordance to any best practice that maybe existing Accordingly, how does those layers supposed to connect/interact with one another eg. what does BLL passes to the DAL and w ...Show All

• MKRaghu biztalk Configuration problem

  Hi, I have installed biztalk server 2004 on windows 2000 professional machine which is having local sql server 2000 client. The sql server 2000 database resides on another wondows 2003 server machine. When i am configuring biztalk server on my local machine(through configframework), it gives me following error Failed to create SQL login for biztalk administrators group on database server "RemoteWindows2003ServerName". Windows ...Show All

• SteveD10 Lazy linking pattern

  Lazy loading is a familiar pattern for hydrating business objects but has the drawback of being expensive when many objects need to retrieved (through many SQL queries). In a situation where there are perhaps 20 classes of object each with only 5 to 100 instances of each class, it may make sense to load each of the instances of each of the classes in one go. However linking these classes might be best done as required (hence 'lazy l ...Show All

• SkySigal Reverse Engineer SQL 2005 with Visio 2003 Error

  Hey everyone, I have an ODBC connection to my SQL 2005 database using the Native 2005 driver. When I try to reverse engineer in Visio, I get the following error: The currently selected Visio driver is not compatible with the data source. I've tried changing the default driver and datasource for the project. I've also searched for updates on MSDN and the Office websites. I'm using SP2 for Visio Professional 2003. Any suggestions ...Show All

• sof4king the best orm for .net?

  I would like to know your favorites, i am looking for a free one and with caching capabilities. well I would say to look at the following and weight their pros/cons with your requirements nhibernate gentle.net (2.0 is looking great is is completely based around concepts put forward in DDD by eric evans) wilson O/R (its not free but it has a minimal price, $50 if I remember correctly that includes source) A nice thing about this p ...Show All

• JimmyFo API to import and export XMI

  Hi, Putting it simply, I want to integrate a tool with the functionality of importing and exporting XMI (with the option to draw UML diagrams as well) into my application. Is this possible If not, is there a work around for this one Thank you. Hi, I don't know anything about DSLs Can you point me to some tutorials Thank you. You can definetely build ...Show All

• MobileD Architecture templates

  I am in a small shop where we don't have UML tools or other design aids other than Visio. What I am looking for if there is any are templates or guides, standards for how a system architecture should be documented. That standard would also include how architecture should be documented graphically as well. Hi Tim, It is rather hard to introduce any agility to fixed price, fixed date projects (we've had partial success on several project ...Show All

• rodgerpb Architectural considerations when developing a .Net solution with intergaration to Legacy apps

  I need to develop a web based application wherein the data would be retrieved from Mainframes and other legacy apps. I know that there would be a limit in connections that I can open to connect to this legacy systems. Even though my web application on the top would be able to take that load but internally when request get queued up at the legacy end things go for a toss. Trouble is I can change the interface to the legacy applicati ...Show All

• Steve Camsell MSMQ vs Event/Delegate model as foundation for flexible application architechture?

  While architecting a framework for an application that is being developed, for which we plan to use 'messaging' as the primary data/information exchange mechanism, use we came across this dilemma: To use MSMQ or Event/Delegate model of .NET To elaborate a little further, the system would consist of User Data Management, Video Capture, Printing, UI, Remote UI and Remote Control interfaces etc. ALL interactions between these modules wo ...Show All

• Trevor Damster VisioR 2003 UML To XMI Export

  Has anyone been able to import the xmi export file this tool generates into any other tool I have tried pulling Visio Use case diagrams into XDE, Sparx 4.1, and now Sparx 6.0 with zero luck. Are there any plans to upgrade this add-in to export xmi 1.1, 1.2, etc The 1.0 version it exports is not support with the rest of the tools (XDE and Sparx) on the market I am currently using.   Mauro Regio ...Show All

• Shawn Rheal Message vs Service.

  EmailValidation message vs EmailValidation Service. SOA is mostly about services and messages. Rather than create a number of services with different names would it be recomended if we create 1 generic service and have it request/reply messages. For ex: EmailValidation service. Instead of creating a service for email validation, create a validationService and have it process all the validation messages for the application. Just wondering how ...Show All

• Manu Kanwarpal Why use an application server?

  My boss wants me to explain to him the advantages of having an application server in our web app. Currently our web app talks directly to SQL Server. What are some of the pros and cons of having an application server in this type of application --SY Hi , Regarding having different physical servers for different layers, it would be wrong to directly conclude that it would have performance problems ...Show All

• Rags_Bhat Advantages of OOP ?

  Hello, Im a fun of OOP designs. I design my bussiness classes when I start a new project. Then maybe I will write mapper classes for bussiness classes to map DB tables or using an O/RM tool or an ODBMS . Think that this project is big one and it has long deadline. You will develop it 2 or 3 years. Requirements will be changed. To develop this project with OOP designs and n-Tier application design is good idea. But I am asking myself ...Show All

• Wolf Schmidt - MSFT Safely access file from a Web server

  Hello, I work on a project where clients access to a database and a files storage system (NTFS). On a LAN, all works fine but we would like to allow user to access those data from Internet. My question is: how our Web server can safely access to the file storage Is it acceptable to access directly to the files Must we develop a kind of application server In this case, which kind of technology could be used Lastly, if my web serve ...Show All