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Currently, web services management standards are developing and
no history of best practices exists. Therefore, Business partners need a
detailed agreement on quality of service and service level specifications
for each web service used. Security can be an issue for web services
because web services feed data directly to company’s internal
applications, bypassing any security features used at a company's network
perimeter. In order to make web services simpler and more acceptable,
these issues need to be worked out.
SERVICE – ORIENTED ARCHITECTURE (SOA)
Service-oriented architecture (SOA) is a technology that simplifies
integration.
SOA provides business functionality as a service. A service is a
reusable software component that can be used as a building block to form
larger, more complex business-application functionality. SOA is designed
not to replace but augment and extend the existing processes, where
necessary.
SOA has been used for applications that provide connectivity to
back-end systems inside of the enterprise. Applications using SOA are
more flexible than the traditional applications developed utilizing point-
to-point communication. In E-commerce, SOA can be used to provide
access to service across various participants through a common interface
that connects to several services.
In the complex E-commerce infrastructure, there are many service
providers e.g. payment service providers, and each service provider has
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