WCF and N-Level Architecture

Question

Im working on an application that was developed using the n-tire application architecture. The application was developed on the .NET platform using C #, VB.NEt, Framework 3.5, Dataset, WCF, asp.net update panel, JavaScript, Josn, third-party tools. my current proposed layout is this

presentation layer → Business Logic → WCF → DAL-> Data Access

Point Is: Is the above schema the right way to build SOA systems?

As always, your advice is much appreciated

Answer 1

It depends on your definition, see Fowler comments .

, , - SOA, , . , - "" WCF. , , Silverlight, WPF .., -.

:

→ WCF → - → DAL- >

Answer 2

, , WCF Pres Biz. , SOA (.. , "EmailService" "WeatherDataService", N-). , WeatherDataService DAL, EmailService Biz.

:

• N- WCF
• WCF Datasets N-
• N-Tier WCF, MVC LINQ

Answer 3

-, . : → WCF → - → .

N-/ - . . Instaed, , .