Answer Questions

• till_hm How I can let users to extend database schema?

  Hi. Your help is very appreciated. I want to build an app that is basically a client db. For that I am contructing a "client" class (that has - name, address, contact details etc...). However, I want to enable my users, to add properties to my "client" class WITOUHT needing to change my code . i.e. some clients might require an "age" and "annual income" properties as part of the "client" class. Which design pattern(s) might assist me ...Show All

• Donald E. King finding design patterns from Model or P.E file

  Hi,        Are there any tools or APIs that take a model (as XMI probably) or a P.E file (so in effect, source code won't be available) and give the design patterns that were used in the model Which classes participate in which patterns and related info It could probably be one of the stages in reverse engineering, isn't       Thank you. Hi, Reg ...Show All

• rtsboy Best place to store across Layers

  Hi, In a layered ASP.NET application, with Entity/Collection, DAL, BLL, Service Facade, UI, I would like to know what is the best place to store information. This information could be either a primitive type such as a string, or a complex type such as Collection. We use Oracle 10g as DB and two servers for Load balancing. I'm unable to come to conclusion on giving a generic solution on when to use what, among the four options below: 1. Ses ...Show All

• Rahmat Faisal General business object requirements

  For those of you who have worked on medium to large sized projects, or anyone who has an opinion , I would like to know what types of logic an application needs in the business layer. If the objects expose properties and collections, is a simple validation on write all that's needed I guess the objects also have methods that do various things. If anyone feels like offering any insight into the kinds of things their business objects do besides s ...Show All

• None007 A good second book about arquitecture

  Hello I have finished "pro scalable application in .net 2.0" which was nice. Now I want to read another book about architecture. What do you recomend I think Domain-Driven Design: Tackling Complexity in the Heart of Software is a good option, do you know another Thanks. Sorry for taking a while to respond. I actually went out and looked at the reveiws on Amazon. I guess it depends on what you are looking for as to whe ...Show All

• WiltsDBA Entity Aggregation in the BLL/DAL world

  Hi all, I've started to read the paper about entity aggregation ( http://msdn.microsoft.com/library/default.asp url=/library/en-us/dnbda/html/dngrfSOAChallenges-EntityAggregation.asp ) and I've started to wonder - In layered service programming, where you have the service interface, the business process, business components and data components, we sometimes want to do an aggregation of entities (for example - an order might contains the order ...Show All

• ramsarvan rule->Code generation

  there is a rule engine ILOG rules for.net which can create c# code from the rule created in it to improve the performance at runtime. Do we have some other rule engine which has this kind of feature. Also do workflow engines (like K2 etc) has the same kind of feature.If yes ,please name a few Tic The question is - is this really an important feature maybe a rule engine that doesn't have code generati ...Show All

• schrepfler SOA and the next achritecture?

  Hello, are there any meanings or researches what comes after SOA Regards, Jens Hibbeler What do you think of Event Driven Architecture Well, can you find the link of this post :) It is so funny! I think the next step might be trying to formalize all technologies, architectures, and techniques involved in SOA. it is almost impossible to formalize such a SOA. you will always find differe ...Show All

• Robert H. Design pattern for interactive communications between users

  We have a need for two users to communicate interactively over a VPN connection through a DMZ. We are considering a smart client (internet side) talking to a web server (in the DMZ) talking to a smart client (within our network). Wondered if anyone knew of a design pattern (or any other solution) to this problem. As I said it would depend on the scale of your app. I could get a basic remoting base ...Show All

• kay don the best orm for .net?

  I would like to know your favorites, i am looking for a free one and with caching capabilities. No, the Codus/NVelocity generates code. With the NHibernate we looked at its source code  in addition to testing it out. NHibernate of course is a very good tool, but we wanted a strongly typed DAL with generated code so that the DAL was like an integrated part of the application.  Further, we could easily change the way the C ...Show All

• Fola Enterprise Service Platform 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

• jxbma catch and rethrow is expensive, log is far far more expensive!

  log will make a 5 times degradation in performance! so if your call depth is 5, and you log at every layer, then that single failed call will take 5**5 more time to complete! not to say the big mess made by all the repeated log record for the same single failure. so in the end, log will kill you instead of save you. :-) John Xie SourceCompanion, the best in class collabration tool built on vss i think i was replying in ...Show All

• Bhavik Shah - MSFT Win2003 Server Desolving NIC team, will there be a DNS problem

  My company recently wanted to dissolve the NIC team and create 2 IPs (one for each NIC). This is in support of a program called Altiris. What kind of problem will there be for the DNS What about failover Does Round Robin actually work in this case How would we go about doing this ...Show All

• dejawoo Contract first - what tools do you recommend?

  Hajo, I know about addin from Thinkcenture but I'm wondering if you use other tools, addins, etc. Pawel, I am really interested in your picture of 'perfection'. What do you think would make contract-first (or whatever they call it today) perfect Thanks, Christian Thanks, and how the present looks like ;) I know this blog and DSL a bit but it stilll far from perfection at the moment. In my opinion the future will look somet ...Show All

• ones81 Problem of builiding the UIP Assemblies

  Hello, the problem that I found with UIPAB is when I tried to build the two assemblies from the the 2 projects :Microsoft.ApplicationBlocks.Data and Microsoft.ApplicationBlocks.UIProcess ... knowing that the conversion log from visual sutdio 2003 to visual sutdio 2005 had displayed errors...(I must mention that the UIPAB is implemented with VS 2003 and I am using the 2005 one ) So should I presume that is the origin of the problem Thanks for ...Show All