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1.05.11 Post
by Dr Dioner Hincliffe with Iowa Mobile Cloud Provisions, Inc
Web Services......Explained
Usually, Web Services facilitate the Business to Business
interactions by providing an open and dynamic communication model based on certain standards and specifications. It's simply
an application that operates over the Internet.
It plays a vital role in Stock Exchange Quotes, Flight Booking
Services, Railway Reservation System and Weather Report throughout the planet.
Three Main Features
Interoperable
- Platforms and Programming languages doesn't matter. Supports Interoperable machine to machine Interaction over
Internet
Self Describing - Each web service is self described using
WSDL. Web services are accessible by posting their WSDL descriptions.
SOAP Interactions
- SOAP is an XML based messaging protocol for exchanging information between the web services
what_is_web_services_architecture
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IMAGES...AMAZON WEB SERVICES TO END USER FLOW CHART
Older distributed computing are mostly tightly coupled systems. They are less effective
in Business to Business interactions and the dependencies between the components are more.
Web Services provides
the loosely couple systems, dynamically bound applications and very helpful in Business to Business interactions. Each business
components are independent of each other.
When two companies Join
Consider two companies merge and the
customer information is stored in two different systems. The newly merged systems must integrate without compromising the
functionalities in each system.
Web Services provides a better solution to handle this situation. Both the companies
should expose their functionality as web services. A new application is developed to integrate the above two systems, so that
the clients can use the both systems effectively.
web_services_business_to_business_interactions
Online Shopping
and buying
An online shopping application is made up of complex functionalities like Currency Conversion,
Credit Authorization and the Payment gateway. It will be tedious process, if the company develops all the functionalities
by themselves.
Instead, there were many web services that provide the
functionality for Currency Conversion, Payment Processing & other complex solutions. Simple way we need to do is, just
consume those services and complete our business application with minimal time. Application Required Different User Interface
Consider we need to develop an application that
should support various user interfaces like Windows based interface, Web based interface, Pocket PC, & etc without changing
any code.
Web Services provides you the better solution for this. Presentation Layer will differ for each user
interface. So it should be independent of Business Layer and Data Access Layer. Business layer supplies all the functionalities
through web services. So there won't be any separate functionality for each user interface. It will be same for all the user
interfaces.
Hope we discussed about the usage of Web Services in different scenarios. There are many more benefits
of web services. We will discuss them in the upcoming articles...and posts on Clear Cloud Network....
