Managed IT Services Whistler

 Because the processing of a customer's credit card is accomplished by a remote server on the Internet, DCOM is not ideal for facilitating communication between the e-commerce client and the credit card processing server. As in an ERP solution, a third-party component is often installed within the client's datacenter (in this case, by the credit card processing solution provider). This component serves as little more than a proxy that facilitates communication between the e-commerce software and the merchant bank via a proprietary protocol.
Do you see a pattern here? Because of the limitations of existing technologies in facilitating communication between computer systems, software vendors have often resorted to building their own infrastructure. This means resources that could have been used to add improved functionality to the ERP system or the credit card processing system have instead been devoted to writing proprietary network protocols.

In an effort to better support such Internet scenarios, Microsoft initially adopted the strategy of augmenting its existing technologies, including COM Internet Services (CIS), which allows you to establish a DCOM connection between the client and the remote component over port 80. For various reasons, CIS was not widely accepted.

It became clear that a new approach was needed. So Microsoft decided to address the problem from the bottom up. Let's look at some of the requirements the solution had to meet in order to succeed - Managed IT Services Whistler.

Interoperability The remote service must be able to be consumed by clients on other platforms.

Internet friendliness The solution should work well for supporting clients that access the remote service from the Internet.

Strongly typed interfaces There should be no ambiguity about the type of data sent to and received from a remote service. Furthermore, datatypes defined by the remote service should map reasonably well to datatypes defined by most procedural programming languages.

Ability to leverage existing Internet standards The implementation of the remote service should leverage existing Internet standards as much as possible and avoid reinventing solutions to problems that have already been solved. A solution built on widely adopted Internet standards can leverage existing toolsets and products created for the technology.

Support for any language The solution should not be tightly coupled to a particular programming language. Java RMI, for example, is tightly coupled to the Java language. It would be difficult to invoke functionality on a remote Java object from Visual Basic or Perl. A client should be able to implement a new Web service or use an existing Web service regardless of the programming language in which the client was written.

Support for any distributed component infrastructure The solution should not be tightly coupled to a particular component infrastructure. In fact, you shouldn't be required to purchase, install, or maintain a distributed object infrastructure just to build a new remote service or consume an existing service. The underlying protocols should facilitate a base level of communication between existing distributed object infrastructures such as DCOM and CORBA.

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