Here are the benefits of using Web Services:
Exposing the Existing Function on the network
A web service is a unit of managed code that can be remotely invoked
using HTTP, that is, it can be activated using HTTP requests. Web
services allows you to expose the functionality of your existing code
over the network. Once it is exposed on the network, other application
can use the functionality of your program.
Interoperability
Web services allow various applications to talk to each other and
share data and services among themselves. Other applications can also
use the web services. For example, a VB or .NET application can talk to
Java web services and vice versa. Web services are used to make the
application platform and technology independent.
Standardized Protocol
Web services use standardized industry standard protocol for the
communication. All
the four layers (Service Transport, XML Messaging, Service Description,
and Service Discovery layers) use well-defined protocols in the web
services protocol stack. This standardization of protocol stack gives
the business many advantages such as a wide range of choices, reduction
in the cost due to competition, and increase in the quality.
Low Cost of Communication
Web services use SOAP over HTTP protocol, so you can use your
existing low-cost internet for implementing web services. This solution
is much less costly compared to proprietary solutions like EDI/B2B.
Besides SOAP over HTTP, web services can also be implemented on other
reliable transport mechanisms like FTP.
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