Soap XML Protocol
Created by Microsoft in 1999, "SOAP" is the Simple Object Access Protocol. It is a neutral format for passing messages between incompatible applications across a network.
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Features
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SOAP is based on XML messages. XML stands for Extensible Markup Language. The structure of XML, which is text-based and not operating system-specific, is similar to HTML (Hypertext Markup Language) and is becoming a standard file format. SOAP is used, for example, in all Microsoft Office products.
Function
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Applications use SOAP to explain their configuration and operating needs to other applications. Following this discovery process, applications communicate using SOAP messages to pass data and instructions.
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System
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SOAP transports the XML message with HTTP (Hypertext Transfer Protocol) headers. This is an unusual application for HTTP, which itself is an application and not meant for transferring data. SOAP also employs the Remote Procedure Call (RPC) protocol to pass commands over a network.
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References
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