Service oriented architecture, DOT NET Programming

What is Service Oriented architecture?

The "Services" are the components which expose well defined interfaces and these interfaces communicate through XML messages. By Using the SOA you can build workflow that uses interfaces of these components. The SOA is typically useful when you are crossing heterogeneous technical boundaries, domain, organizations etc.

The .NET SOA technically uses the Web services to communicate with every service which crosses the boundaries. You can look SOA which sits on the top of the web services and provides a workflow.

The SOA uses service components that operate in their own domain boundary. Let us view some points of service:-

1) They can operate in their own boundary and in their own technology &   are independent components.

2) They all have well defined interfaces that use XML & WSDL to explain themselves.

3) These Services have URL where anyone can find them and clients can bind the URL to avail for the services.

4) These Services are  very loosely coupled architecture. In order to communicate to the service you only have to know the WSDL. Your client can then create proxy from the WSDL of the service.


257_service oriented architecture.png

Figure: - SOA basic architecture

The above diagram  describes a broader picture of what service oriented architecture will look like. The main basic fundamental of SOA is a web service. In the above diagram you can see there are 2  services available. One is the "Credit Card" service &  another is  the "Address Check" web service. These both  services are given by different company. Now we want to build a functionality which require  to validate a credit card and also check that addresses are proper or not . In brief we will need functionalities of both the "CreditCard" and the "AddressCheck" service. Also note that the "CreditCard" service has its own business layer and DAL components, that can be in a proprietary language. It is  very much possible that the whole Credit card service is made in the .NET and the Address check is of SAP implementation or JAVA implementation. But as  both the systems gives there functionality using the Web services which is nothing but basically the XML message communication. So we have made new service which sits like a FAÇADE on the top of both the web service and performs both functionalities in one common service.A  third service which sits on the top of both the webservice and consumes them. Also you can see that the UI part of the systems have access to the Business layer and Web service of there system. But the service which does both these check has only access to the Web service only.

Posted Date: 9/24/2012 1:02:38 AM | Location : United States

Related Discussions:- Service oriented architecture, Assignment Help, Ask Question on Service oriented architecture, Get Answer, Expert's Help, Service oriented architecture Discussions

Write discussion on Service oriented architecture
Your posts are moderated
Related Questions
They are triggered in the following order as shown below: Application_BeginRequest Application_AuthenticateRequest Application_AuthorizeRequest Application_ResolveReque

What is Machine.config?  Machine configuration file: The machine. config file have settings that apply to the entire computer. This file is located in the %runtime install path

What is ACID fundamental? What are transactions in SQL SERVER? The transaction is a sequence of operations performed as a single logical unit of work..The logical unit of work

What is Cache Callback? The Cache object is dependent on its dependencies for example time based, file based, etc...The Cache items remove the object when cache dependencies ch

Script for auto seating poker Project Description: Not just like that though. I need a similar program that can scan during poker lobbys (pokerstars, ipoker, full tilt and on

What is Data Independence? Data independence means that "the application is independent of the storage structure and access method of data". In other words, the ability to cha

Prepare datamodel, API and more Project Description: Dear all, we would like you to prepare database and an API which can be used in the shopping cart (checkout and delivery

What is managed code and managed data? Managed code is code that is written to target the services of the Common Language Runtime. In order to target these services, the code m

What is Asynchronous One-Way Calls The One-way calls are a different from the asynchronous calls by the execution angle that the .NET Framework does not assure their execution.

As its name suggests, the website builder must be a desktop application that will allow users to simply create websites. Essentially, the program will have to give the users with a